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World Geography & Mapping — UPSC Prelims Geography previous year questions

77 solved previous year questions on World Geography & Mapping, papers from 1990 to 2022, drawn from UPSC CSE Prelims, State PCS, UPSC CDS. Each carries the printed answer key and the explanation from the source compilation.

1. #1UPSC CSE Prelims 2002
   Sun's halo is produced by the refraction of light in
   • AWater vapour in stratus clouds
   • BIce crystals in Cirro-Cumulus clouds
   • CIce crystals in Cirrus clouds
   • DDust particles in Stratus clouds
   Answer: (C) Ice crystals in Cirrus clouds
   Explanation

   Option c is the correct sun halo is a circular rainbow-like ring that around the sun when there are thin, in the sky. These clouds, called cirrus clouds, of tiny ice crystals that act like prisms and sunlight into different colors. The angle of about 22 degrees, which determines the radius of the halos are not very common, but they can be seen in the world, depending on the weather the position of the sun. They are often considered as a impending rain or snow, as cirrus clouds usually storm front. Sun halos are also sometimes other optical phenomena, such as sun dogs, which spots on either side of the halo, or a which is an inverted rainbow above the halo

2. #2UPSC CSE Prelims 2001
   If the stars are seen to rise perpendicular to the horizon by an observer, he is located on the
   • AEquator
   • BTropic of Cancer
   • CSouth Pole
   • DNorth Pole G
   Answer: (A) Equator
   Explanation

   Option a is the correct the stars are seen to rise perpendicular to the an observer, it means that he is located at the This is because the Earth's equator is the where the celestial equator (the projection of equator onto the celestial sphere) is perpendicular the Earth's poles, the stars do not rise or set, but the zenith (the point directly above the any other latitude, the stars rise and set at an angle to depending on the declination (the angular a star from the celestial equator) and the

3. #3UPSC CSE Prelims 1999
   A ship is moving from the eastern side of Aleutian Islands towards Dutch Harbour. It crosses 1800 meridian on 1st January 1999 at hr. What time and date will be recorded by the captain of the ship in his diary after one-hour journey from the point of crossing of the meridian?
   • AJanuary 1, hr
   • BJanuary 2, hr
   • CJanuary 3, hr
   • DJanuary 4, hr
   Answer: (B) January 2, hr
   Explanation

   Option bis the correct crossing the International Date Line (IDL), the the date and time depends on the direction of travel. If is moving from the eastern side of the Aleutian Dutch Harbour (westward), it will gain a day crosses the meridian. So, if the ship crosses on 1st January 1999 at hr, after it will be recorded as January 2, hr in diary. The ship moves into the next day as it Important Tips Time and date across IDL: Crossing the IDL results in either gaining or losing a day depending on the direction of travel. Traveling westward across the IDL leads to gaining a day, while traveling eastward results in losing a day. Example: If someone travels eastward from Wake Island to the Hawaiian Islands on June 25, they will shift their calendar back to June 24 upon crossing the IDL. Traveling westward in the opposite direction would mean arriving at Wake Island on June 26. When moving west

4. #4UPSC CSE Prelims 1995
   The standard time of the following countries is ahead of or behind Greenwich Mean Time depending on whether they are East or West of the longitude passing through 1. Cuba 2. Greece 3. Iraq 4. Costa Rica 5. JapanWhich one of the following sequential orders gives the correct arrangement of the countries according to their standard time from ahead to behind GMT?
   • A5, 3, 2, 1, 4
   • B2, 4, 1, 3, 5
   • C4, 1, 3, 2, 5
   • D3, 5, 4, 1, 2
   Answer: (A) 5, 3, 2, 1, 4
   Explanation

   Option a is the correct according tu their standard time from ahead to behind GMT are as Japan - Standard Time in Japan is 9 hours ahead of GMT. Iraq - Standard Time in Iraq is 3 hours ahead of GMT. Greece - Standard Time in Greece is 2 hours ahead of GMT. Cuba - Standard Time in Cuba is 5 hours behind of GMT. Costa Rica Standard Time in Costa Rica is 6 hours behind of GMT. Important Tips Greenwich Mean Time (GMT): GMT is the mean solar time at the Royal Observatory in Greenwich, London, counted from midnight. GMT has been calculated in different ways in the past, including being calculated from noon. This historical variation means that it cannot specify a particular time without context. GMT is also used as one of the names for the time zone In the United Kingdom, it is the basis for civil time. English speakers often use GMT interchangeably with Coordinated Universal Time (UTC). For n

5. #5UPPCS 2003
   Consider the following statements: Assertion (A): A black hole is an astronomical entity that cannot be seen by telescope. Reason The gravitational field on a black hole is so strong that it does not allow even light to escape. In the context of the above statements, which one of the following is correct: The milky way is classified as- Which one of the following longitudes along with the Prime Meridian forms a great drde on the globe? The limit beyond which stars suffer internal collapse is called: A Ball thrown outside from an artificial satellite revolving around the Earth will orbit with the same time period as satellite Which is true about planets? don't shine luminous bodies luminous body shine The solar eclipse occurs on
   • ABoth (A) and (R) are true, and (R) is the correct explanation of (A)
   • BBoth (A) and (R) are true, but (R) is not the correct explanation of (A)
   • C(A) is true, but R is false
   • D(A) is false, but R is true
   Answer: (A) Both (A) and (R) are true, and (R) is the correct explanation of (A)
   Explanation

   Option a is the correct (A) is correct: It states that a black hole is entity that cannot be seen by a is true because black holes do not emit any light or of electromagnetic radiation. They are to conventional (R) is correct: It states that the gravitational field black hole is so strong that it does not allow even light This is also true. According to Einstein's theory relativity, a black hole is formed when a collapses under its own gravity, creating a region where the gravitational pull is so intense that even light, can escape from reason (R) provides the correct explanation for why hole cannot be seen through a telescope. The field of a black hole prevents any form radiation from escaping, making it dark and effectively invisible

6. #6UPSC CDS 2015
   If 30' East longitude (Allahabad) shows am of Sunday (local time), what would be the local time of Florida (USA) located at West longitude?
   • Apm of Saturday
   • Bpm of Sunday
   • Cam of Sunday
   • Dam of Saturday
   Answer: (A) pm of Saturday
   Explanation

   Option a is the correct determine the local time in Florida (USA) located at longitude, we need to account for the time the two locations. The time difference degree of longitude is approximately 4 minutes. Since Allahabad 30' East longitude) is ahead of Florida West longitude) by 164 degrees 30' 82 we multiply the time difference (4 minutes) by 164 4 656 Now, we convert 656 minutes into hours by dividing it by 60: 656 minutes I 60 10.93 hours Since the time in Allahabad is am on Sunday, by subtracting 10.93 hours from it, we get the local time in am - 10.93 hours approximately pm of the correct answer is (a) pm of Saturday

7. #7UPSC CDS 2014
   Which of the following statements regarding the duration of day and night is correct?
   • ADifference is least near the Equator and progressively increases away from it
   • BDifference is maximum at the Equator and progressively decreases away from it
   • CDifference is least at the Tropics and progressively increases towards the Equator and Poles
   • DDifference is maximum at the Tropics and progressively decreases towards the Equator and Poles
   Answer: (A) Difference is least near the Equator and progressively increases away from it
   Explanation

   Option a is the correct duration of day and night is determined by the tilt Earth's axis and its rotation around the Sun. Near which is located at O degrees latitude, the day and night duration is relatively small year. This is because the Equator receives nearly of sunlight year-round due to its proximity to direct one moves away from the Equator towards such as towards the Poles, the difference in of day and night progressively increases. because the angle at which sunlight reaches the becomes more oblique, resulting in shorter days nights during certain times of the year

8. #8UPSC CAPF 2021
   In order to find out the absolute location of a place on the map, which of the following will be required?
   • ALatitude of the place alone
   • BLongitude of the place alone
   • CBoth latitude and longitude of the place
   • DNeither latitude nor longitude of the place
   Answer: (C) Both latitude and longitude of the place
   Explanation

   Option c is the correct and longitude are two sets of coordinates used to determine the absolute location of a place map. Latitude is the measure of a place's distance south of the equator, while longitude is the measure of distance east or west of the Prime Meridian. OF ANO OF North Pol" Equator Encycloprndia Britannica

9. #9State PCS 2019
   The country which has the longest north- 93. south (latitudinal) extension of its territory is
   • ARussia
   • BChile
   • CChina
   • DBrazil (e) None of the above/More than one of the above
   Answer: (B) Chile
   Explanation

   Option b is the correct is the country with the longest extension of its territory. It is located America and extends from a latitude of South Horn at South, covering a distance of over (2,653 miles). Important Tips Indian Geographical Extent: India is located entirely in the northern hemisphere; specifically in the south-central part of the continent of Asia, the mainland extends between latitudes and and longitudes and area of the world. The southernmost point of the country is the Pygmalion Point or Indira Point is located at 45' N latitude. GEQ The north-south extent from Indira Col in Kashmir to Kanyakumari is 3,214 km. East-west width from the Rann of Kutch to Arunachal Pradesh is 2,933 km

10. #10UPSC CSE Prelims 2012
    A person stood alone in a desert on a dark night and wanted to reach his village which was situated east of the point where he was standing. He had no instruments to find the direction but he located the polestar, the most convenient way now to reach his village is to walk in the
    • Afacing the polestar
    • Bopposite to the polestar
    • Ckeeping the polestar to his left
    • Dkeeping the polestar to his right
    Answer: (C) keeping the polestar to his left
    Explanation

    Option c is the correct pole star also called the North Star indicates the Therefore, if the person walks keeping the his left, he will be travelling in the East l. Solution: Option b is the correct equator is an imaginary line that circles the it into the Northern and Southern of this, the intersection point of any location equator is equidistant from the North and South out what life is like for countries along the the equator stretches 40,075 kilometres around it travels through just 13 countries, though only controlled by two of these rather than the AU the Countries That Lie /Uong the Equator D b,,ttl I lic of Co Equator passes through 13 countries: Brazil, Sao Tome Principe, Gabon, the Congo, Democratic Republic of the Congo, Somalia, Maldives, Indonesia and Kiribati. At of these countries rank among the poorest in the world

11. #11UPSC CSE Prelims 2008
    Which one of the following cities is nearest to the equator?
    • AColombo
    • BJakarta
    • CManila
    • DSingapore
    Answer: (D) Singapore
    Explanation

    Option dis the correct equator is an imaginary line of latitude on the dividing it into southern and northern earth, this line is approximately 24,901 miles of lies on land and the rest on the water. The through several countries, mainly in Africa and However, Indonesia (Southeast Asia) is most by the is around one-and-a-half degrees north of lying entirely between the 1st and 2nd is nearest to the equator among the above given is the capital of Indonesia. Lying on the of Java (the world's most populous island), are is the capital of Sri Lanka by population. is the capitai of the Philippines, and its

12. #12UPSC CSE Prelims 2008
    Which one of the following straits is nearest to the International Date Line?
    • AMalacca Strait
    • BBering Strait
    • CStrait of Fl or ida
    • DStrait of Gibraltar
    Answer: (B) Bering Strait
    Explanation

    Option b is the correct international date line passes through the and roughly follows a 180 degrees longitude north south line on the Earth. It is located halfway around from the prime meridian -- the O degrees in Greenwich, Strait: The Bering Strait is a strait between and Arctic oceans, separating the Chukchi the Russian Far East from the Seward Peninsula of Strait is nearest to the International Date line. Date Line runs between the Diomede Islands and St. Lawrence Islands located in the middle of the present Russia- United States maritime boundary is 58' 37" W longitude, slightly south of the Arctic about 40' N latitude. 170' NORTH [JCEAN 170' Strait: The Strait of Malacca Straits of a narrow stretch of water, 580 mi (930 km) in the Malay Peninsula (Peninsular Malaysia) and island of of Florida: The Straits of Florida, Florida Straits, Strait is a strait located south-southeast of t

13. #13UPSC CSE Prelims 2005
    Which one of the following is the correct sequence of the given Continents in the decreasing order of their percentage of Earth's land?
    • ANorth America Africa - South America - Europe
    • BAfrica - North America - South America - Europe
    • CNorth America - Africa - Europe - South America
    • DAfrica - North America - Europe - South America
    Answer: (B) Africa - North America - South America - Europe
    Explanation

    Option b is the correct answer. The correct sequence of the given Continents in the decreasing order of their percentage of Earth's land are Africa - North America - South America - Europe. Asia: It is a landmass variously described as part of Eurasia or as Earth's largest and most populous continent in its own right, located primarily in the Eastern and Northern Hemispheres. It shares the continental landmass of Eurasia with the continent of Europe and the continental landmass of Afro-Eurasia with both Europe and Africa. Asia covers an area of 44,579,000 square kilometres (17,212,000 sq mi), about of Earth's total land area and of the Earth's total surface area. is the world's second-largest and continent, after Asia in both cases. At about ( 11. 7 million square miles) including it covers of Earth's total surface area and land America is a continent in the Northern almost entirely with

14. #14Previous year
    Desert is defined as the area where- [U.P. Lower Sub. (Pre) 2009)
    • ATemperature remains more than C
    • BNo plants are found
    • CAnnual rain occurs less than 25 cm
    • DProminence of sand barrows
    Answer: (C) Annual rain occurs less than 25 cm
    Explanation

    Option c is the correct a is incorrect: Temperature of deserts can be 420 C. Temperature generallv falls at night in b is incorrect: Plants are also found in adapted as per the environment. For e.g. the leaves plants are modified into spines to reduce the rate from c is correct: Most experts agree that a desert is of land that receives not more than 25 cm 10 inches) a year. The amount of evaporation in a greatly exceeds the annual rainfall. In all deserts, little water available for plants and other d is incorrect: Sand barrows are commonly found but it is a necessary condition but not Sand burrows can also be found in the the deserts such in the coastal areas, but they are deserts

15. #15UPSC CSE Prelims 2011
    Between India and East Asia, the navigation time and distance can be greatly reduced by which of the following? 12. 1. Deepening the Malacca straits between Malaysia and Indonesia. 2. Opening a new canal across the Kra isthmus between the Gulf of Siam and Andaman Sea.Which of the statements given above is/are correct?
    • A1 only
    • B2 only
    • CBoth 1 and 2 13
    • DNeither 1 nor 2
    Answer: (B) 2 only
    Explanation

    Option bis the correct l is incorrect. The current depth of Strait is 25 metres, which prohibits entry of some biggest ships in the world. However, deepening it reduce navigation-time and distance to be 2 is correct. The Kra Isthmus is the of the Malay Peninsula. Kra canal is a proposed would reduce the travel time by eliminating going around the Malay peninsula, and reducing of nearly 1,200 kilometres

16. #16State PCS 2012
    Which continent is known as 'the Cradle of Mankind'?
    • AAsia
    • BAfrica
    • CEurope
    • DSouth America
    Answer: (B) Africa
    Explanation

    Option b is the correct is known as 'the Cradle of Mankind' because it human life originated. The term specifically a region in South Africa, which has yielded fossil several human ancestors dating back millions of region, including sites like Sterkfontein, Drimolen, Bolt's Farm, and Gondolin evidence for the study of human evolution, and it a UNESCO World Heritage site in 1999

17. #17State PCS 2016
    The boundary line between India and Pakistan is an example of
    • ASuperimposed boundary
    • BAntecedent boundary
    • CRelict boundary
    • DSubsequent boundary
    Answer: (A) Superimposed boundary
    Explanation

    Option a is the correct superimposed boundary is a boundary that has on an area by an outside or conquering Border between India and Pakistan is an example boundary as partition was enforced on the British. Important Tips Subsequent Boundary are boundaries which are established after the settlement in an area. It changes as the cultural landscape changes and is drawn to accommodate developments due to a certain event such as war. The best example is Yugoslavia. It was formed following World War I by the merger of several territories. Antecedent Boundary are boundaries that exists before the present settlement and was often based on landforms. One of the examples is of Andes Mountains which separates Chile, Argentina, and Bolivia. Relict Boundary is one that no longer functions but can still be detected on the cultural landscape. One of the examples is of the Berlin Wall built in 1961 uui

18. #18State PCS 2012
    Which one of the following Indian states does not share border with Bhutan?
    • ASikkim
    • BMeghalaya
    • CArunachal Pradesh
    • DWest Bengal
    Answer: (B) Meghalaya
    Explanation

    Option b is the correct Indian states that share international boundary are West Bengal, Arunachal Pradesh, Sikkim, It does not share its border with Meghalaya. 699 Km long Border with India. Important Tips Bhutan It is a landlocked country and is bordered by China in the north and India in the south. The capital of Bhutan is Thimphu. Buddhism is the state religion of Bhutan. The official language of Bhutan is Dzongkha. It is a Sino- Tibetan language

19. #19JPSC 2016
    Which of the following pairs is not correctly matched?
    • ATotal area of India: 3.28 million sq. km
    • BLatitudinal extent: N - N
    • CLongitudinal extent: E - E
    • DNumber of states in India: 26
    Answer: (D) Number of states in India: 26
    Explanation

    Option d is the correct 1 is correct: India occupies 3.28 million area which forms of the world's land 2 and 3 are correct: India is entirely in the The mainland of India extends between and and longitudes and 4 is incorrect: There are 28 states and 8 Union the country. Important Tips Arabhrn l I I Kianyakumarl I lndlan oan India has a land boundary of about 15,200 km and the total length of the coastline of the mainland, including Andaman and Nicobar and Lakshadweep, is 7,516.6 km. India is bounded by the young fold mountains in the northwest, north and northeast. South of about north latitude, young fold mountains begin to taper, and extends towards the Indian Ocean, dividing it into two seas, the Arabian Sea on the west and the Bay of Bengal on its east India is a southward extension of the Asian continent

20. #20UKPSC 2021
    Which of the following Island is not a part of Laccadive Island?
    • ATilanchong
    • BAgathi
    • CKavaratti
    • DKalpeni
    Answer: (A) Tilanchong
    Explanation

    Option a is the correct island that is not a part of the Laccadive Islands Tillangchong, also known as Tillanchang, island and a village in the Nicobar district of Nicobar Islands, India. The other three islands, and Kalpeni, are part of the Union Territory in the Arabian Sea. Important Tips Agatti Island is a 7.6 km long island, situated on a coral atoll called Agatti atoll in the Union Territory of Lakshadweep, India. It is 459 km west of the city of Kochi. Kavaratti is the capital of the Union Territory of Lakshadweep in India. Kavaratti is a census town as well as the name of the atoll upon which the town stands. It is located 332 km (206 mi) west to the city of Kannur. Kalpeni is an inhabited Atoll in the Union Territory of Lakshadweep, India. It has a distance of 287 km west of the city of Ko chi. G

21. #21State PCS 2006
    Which among the following places will have maximum length of day in the month of June?
    • AHyderabad
    • BChennai
    • CBhopal
    • DDelhi
    Answer: (D) Delhi
    Explanation

    Option d is the correct length of the day depends upon the geographic a place and upon the inclination of the sun. It is due inclination that as we go northwards in summer in hemisphere, the hours of daylight increase means that the places located at higher latitudes longer daytime. Hence, Delhi will have in the month of June, as Hyderabad, Chennai are south of Delhi

22. #22UPSC CDS 2022
    Which one of the following States/UTs has the largest area under Coral Reefs in India?
    • AGujarat
    • BTamil Nadu
    • CAndaman and Nicobar Islands
    • DLakshadweep
    Answer: (C) Andaman and Nicobar Islands
    Explanation

    Option c is the correct and Nicobar Islands has the largest area reefs in India. The islands have a total of 1,021 of coral reefs, which is about of the reefs in India

23. #23UPSC CDS 2021
    Which one of the following water bodies separates the Andaman and the Nicobar islands?
    • AGulf of Mannar
    • BTen Degree Channel
    • CEleven Degree Channel
    • DPalk Strait
    Answer: (B) Ten Degree Channel
    Explanation

    Option b is the correct Ten Degree Channel is the water body that Andaman and Nicobar Islands. It is a strait the Bay of Bengal, running along the approximate north of the equator. This channel serves as a route, allowing ships and vessels to the Andaman Sea and the Bay of Bengal, connection between the Andaman and Nicobar Islands. Important Tips The Eight Degree Channel separates Minicoy Island and the Maldives, while the Nine Degree Channel separates Kalpeni, Suheli Par, and Minicoy Island from Maliku Atoll in the Indian Ocean. The Eleven degree channel divides Amindivi and Cannanore

24. #24Previous year
    Which of the following statements is/are correct with respect to Time Zone in India? 1. There is one standard time for the whole country. 2. Andaman and Nicobar Islands and Lakshadweep Islands have different Time Zones. 3. Indian Standard Time (IST) is five and half hours behind GMT.Select the correct answer using the codes given below
    • AOnly 1
    • BOnly 2
    • C1 and 2
    • D1 and 3
    Answer: (A) Only 1
    Explanation

    Option a is the correct l is correct: India follows Indian Standard which is the standard time used across the 2 is incorrect: Andaman and Nicobar Islands Islands do not have different time zones. follow Indian Standard Time incorrect: Indian Standard Time (IST) is a half hours ahead of GMT (Greenwich Mean behind it. GMT is the primary time standard used as point for time zones around the world, and IST of it by five and a half hours

25. #25Previous year
    M wants to visit a place in a Union Territory, which is located at N and E.Which one of the following Union Territories must he have planned to visit?
    • AAndaman and Nicobar Islands
    • BLakshadweep
    • CPuducherry
    • DLadakh
    Answer: (D) Ladakh
    Explanation

    Option d is the correct is the Union Territory located at N and other Union Territories mentioned in the question at different latitudes and longitudes. Andaman and Nicobar Islands: N and E Lakshadweep: N and E Puducherry: N and E

26. #26UPSC CDS 2017
    Which of the following statement related to latitude are true? 1. Rainfall, temperature and vegetation vary with latitude. 2. The difference between the longest day and the shortest day increases with latitude. 3. Indira Point is located approximately at latitude.Select the correct answer using the codes given below
    • A1 and 2
    • B1 and 3
    • C2 and 3
    • D1, 2 and 3
    Answer: (D) 1, 2 and 3
    Explanation

    Option d is the correct answer Statement l is correct-Rainfall, temperature, patterns are influenced by latitude. As one the equator towards the poles, there are variations resulting in changes in rainfall, temperature, of vegetation. As we move from the equator poles, insolation (incoming solar radiation) to the increasing angle at which the Sun's rays Earth's 2 is correct- The difference between the (summer solstice) and the shortest day increases as one moves away from the higher latitudes. This is because the tilt of the causes variations in the amount of daylight received 3 is correct- Indira Point, the of the Great Nicobar Island in India, is at latitude. This latitude places it in region

27. #27State PCS 1990
    Which of the following Indian states is the biggest producer of Mica?
    • AAndhra Pradesh
    • BBihar
    • CJharkhand
    • DRajasthan
    Answer: (A) Andhra Pradesh
    Explanation

    Option a is the correct biggest producer of mica in India is Andhra has 41 share in the country's total resources of produces both muscovite (potash or white mica) (magnesium or amber mica). Important Tips Facts About Mica: Jharkhand has the richest deposits of high-quality ruby mica, which is found in a belt extending from Gaya district of Bihar to Hazaribagh and Koderma districts of Jharkhand Rajasthan has a long mica belt that extends from Jaipur to Udaipur along the Aravalli range Mica is exported mainly to Japan, the USA, and the UK. India has a near monopoly in the production of mica, accounting for of the world's total. Mica is also used for making jewellery, leather accessories, and insulation products

28. #28UPPCS 2021
    Nobi and Kanto plains are located in which of the following countries?
    • ANorth Korea
    • BSouth Korea
    • CJapan
    • DChina
    Answer: (A) North Korea
    Explanation

    Option a is the correct determine the local time in Florida (USA) located at longitude, we need to account for the time the two locations. The time difference degree of longitude is approximately 4 minutes. Since Allahabad 30' East longitude) is ahead of Florida West longitude) by 164 degrees 30' 82 we multiply the time difference (4 minutes) by 164 4 656 Now, we convert 656 minutes into hours by dividing it by 60: 656 minutes I 60 10.93 hours Since the time in Allahabad is am on Sunday, by subtracting 10.93 hours from it, we get the local time in am - 10.93 hours approximately pm of the correct answer is (a) pm of Saturday

29. #29UPPCS 2015
    The name of which of the following countries closely means 'country of 40 tribes?
    • AKazakhstan
    • BKyrgyzstan
    • CTajikistan
    • DUzbekistan
    Answer: (B) Kyrgyzstan
    Explanation

    Option b is the correct equinoxes are the only times of the year when point is directly on the Equator. The subsolar an area where the sun's rays shine perpendicular to right angle. This means that the length of day is equal for both hemispheres on the equinoxes. occur around March 21 and September

30. #30State PCS 2010
    The biggest desert in the world is
    • AKalahari
    • BGobi
    • CSahara
    • DThar nlm
    Answer: (A) Kalahari
    Explanation

    Option a is the correct biggest producer of mica in India is Andhra has 41 share in the country's total resources of produces both muscovite (potash or white mica) (magnesium or amber mica). Important Tips Facts About Mica: Jharkhand has the richest deposits of high-quality ruby mica, which is found in a belt extending from Gaya district of Bihar to Hazaribagh and Koderma districts of Jharkhand Rajasthan has a long mica belt that extends from Jaipur to Udaipur along the Aravalli range Mica is exported mainly to Japan, the USA, and the UK. India has a near monopoly in the production of mica, accounting for of the world's total. Mica is also used for making jewellery, leather accessories, and insulation products

31. #31State PCS 1998
    Three mountain ranges determining the boundary between India and Myanmar are
    • AKhasi, Patkoi and Arakan Yoma
    • BAkai Mountain Range
    • CGreat Dividing Range
    • DNone of the above
    Answer: (A) Khasi, Patkoi and Arakan Yoma
    Explanation

    Option a is the correct superimposed boundary is a boundary that has on an area by an outside or conquering Border between India and Pakistan is an example boundary as partition was enforced on the British. Important Tips Subsequent Boundary are boundaries which are established after the settlement in an area. It changes as the cultural landscape changes and is drawn to accommodate developments due to a certain event such as war. The best example is Yugoslavia. It was formed following World War I by the merger of several territories. Antecedent Boundary are boundaries that exists before the present settlement and was often based on landforms. One of the examples is of Andes Mountains which separates Chile, Argentina, and Bolivia. Relict Boundary is one that no longer functions but can still be detected on the cultural landscape. One of the examples is of the Berlin Wall built in 1961 uui

32. #32Practice set
    Loss of primordial atmosphere 2. Degassing 3. Volcanic eruptions 4. Photosynthesis 5. Solar windsSelect the correct answer using the code given below: system. Which of the following is/ are the similarities between earth and other terrestrial planets?
    • A1, 2, 4 and 5 only
    • B2, 3, 4 and 5 only
    • C1, 2, 3 and 4 only
    • D1, 2, 3, 4 and 5
    Answer: (D) 1, 2, 3, 4 and 5
    Explanation

    Option d is the correct Map of l is incorrect: Sweden no land border Sweden shares its major border line with the and Finland (which shares borders with Russia) to To its west lies the country Norway (which shares with 2 is correct: Kazakhstan shares land borders Kazakhstan lies to the south of Russia. Other south of Russia are China, Georgia, 3 is incorrect: Turkey does not share a border Between Russia and Turkey lies the country Black 4 is incorrect: Uzbekistan does not share with Russia. To the north of Uzbekistan Aral Sea is located in between Uzbekistan Option 5 is correct: North Korea shares a land border The terrestrial boundary between Russia and runs along the thalweg of the Tumen River and

33. #33Practice set
    Consider the following statements regarding the Geysers: 1. They are vent in Earth's surface that periodically ejects hot water and steam. 2. They are very common and can be found evenly in every region of the world.Which of the statements given above is/are correct?
    • A1 only
    • B2 only
    • CBoth 1 and 2
    • DNeither 1 nor 2
    Answer: (A) 1 only
    Explanation

    Option a is the correct l is correct: A geyser is a vent in Earth's periodically ejects a column of hot water and geysers are formations that absorb heat from Hul waler is sprouted from its reservoir with a of force and is accompanied by a huge amount This process generates an intensive amount of water and steam sprouted from the geysers are the pipe channels known as conduits found below of the 2 is incorrect: Geysers are rare formations largely distributed across five countries on the i.e. US, Russia, Chile, New Zealand and of the world's geysers are mainly confined to areas - Iceland, the Rotorua district of North Zealand and Yellowstone Park in the USA

34. #34Practice set
    With reference of the Continental Drift Theory, consider the following statements: 1. Continental Drift refers to the horizontal movements of continents relative to one another over a long geological period of time. 2. The malching of the shorelines of Africa and South America is one of the evidences proposed in support of the theory. 3. Gravity, Convection currents and the Primordial Heat are the main forces causing the Continental drift.How many of the statements given above are correct?
    • AOnly one
    • BOnly two
    • CAll three
    • DNone
    Answer: (B) Only two
    Explanation

    Option b is the con-ect Wegner proposed the Continental Drift Theory the movement of continents over the of RAPHY Statement l is correct: Continental drift refers to horizontal movements of continents relative another and to the ocean basins during one or of geologic 2 is correct: The Matching of Continents (Jigsaw-Fit) is shown as an evidence of the Continental The shorelines of Africa and South America other have a remarkable and unmistakable match was tried at 1,000- fathom line instead of 3 is incorrect: Alfred Wegener suggested that responsible for the drifting of the caused by pole-fleeing force and tidal force. But scholars considered these forces to be totally Convectional Current Theory, Arthur Holmes in the possibility of convection currents the mantle portion. These currents are generated radioactive elements causing thermal differences in portion. As per the Plate Tectonic th

35. #35Practice set
    Which of the following is the correct description of continental margin?
    • AIt refers to the region that starts at the bottom of continental shelf and then abruptly descend into a slope
    • BIt refers to the shallowest part of the ocean having an average gradient of 10 or even less
    • CA transition zone that lies between continental shores and deep-sea basins
    • DGently sloping areas of ocean basin having smoothest and flattest regions of the world
    Answer: (C) A transition zone that lies between continental shores and deep-sea basins
    Explanation

    Option c is the correct margin is the region that form the continental shores and deep-sea basins. continental shelf, continental slope, continental deep-oceanic trenches Continental.Rise Abyssal Plain Important Tips Features of Ocean Flow: The continental slope starts at the bottom of the continental shelf sharply drops off into a steep slope. It connects the continental shelf and the ocean basins. The depth of the slope region ranges from 200 lo 3,000 The slope boundary indicates the end of the,ontinrnts. Canyons and trenches are observed in this region. The continent.ii shelf is the sh.illowesl [.mil uf Llu: showrng an average gradient of iu or even less. it is the margin stretched out of each continent. It is occupied by relatively shallow seas and gulfs. The width of the continental shelves varies from one ocean to another. Deep Sea plain are gently sloping areas of the ocean basins

36. #36Practice set
    Consider the following statements about the Continental Drift Theory: 1. Pangaea first broke into two large continental masses as Laurasia and Panthalassa. 2. The movement responsible for the drifting of the continents was caused by tectonic forces. 3. The theory provided direct evidence and a mechanism to prove movement of continents.How many of the statements given above are correct?
    • AOnly one
    • BOnly two
    • CAll three
    • DNone
    Answer: (D) None
    Explanation

    F Option dis the correct drift describes one of the earliest ways continents moved over time. Today, the theory drift has been replaced by the science of l is incorrect: According to Wegener, all formed a single continental mass and surrounded the same. The supercontinent was which meant all earth. The mega-ocean was called, meaning all water. He argued that, million years ago, the super continent, Pangaea, began Pangaea first broke into two large continental Laurasia and Gondwanaland forming the northern components respectively. Subsequently, Gondwanaland continued to break into various that exist 2 i.s Wegener suggested that the for the drifting of the continents was caused force and tidal force. The polar-fleeing to the rotation of the earth. The second force suggested by Wegener-the tidal force--is clue to of the and Lhe that develops tides 3 is incorrect: The greatest problem facing

37. #37Practice set
    In the context of Alfred Wegener's Continental Drift theory, the 'pole-fleeing force' is
    • AA force created by revolution of earth around the sun
    • BCentrifugal force due to earth's rotation
    • CGravitational pull of the sun and the moon
    • DEarth's internal magnetic force
    Answer: (B) Centrifugal force due to earth's rotation
    Explanation

    Option b is the correct to Wegner, the force that is responsible for of continents - Polar fleeing force: The polar fleeing force relates to the rotation of the earth. Earth is perfect sphere; it has a bulge at the equator. This bulge to the rotation of the earth (greater centrifugal force equator). Centrifugal force increases as we move towards the equator. This increase in centrifugal led to pole fleeing, according to Wegener

38. #38Practice set
    Consider the following statements regarding the Epirogenic movement of Earth: 1. These movements acts only horizontally along the surface of the earth. 2. These movements are responsible for the formation of continents.Which of the correct?
    • A1 only
    • B2 only
    • CBoth 1 2
    • DNeither 1 nor 2
    Answer: (B) 2 only
    Explanation

    Option b is the correct l is incorrect. The Eperiogenic movements ones which operate vertically from the center of to its surface (do not work horizontally on the earth) caused by radial forces (Convection Currents). regional upliftment but on a large scale therefore, noticeable deformation of the surface takes 2 is correct. The Epeirogenic movements the continent forming movements of earth. causes regional upliftment or subsidence of at a large scale without any noticeable deformation

39. #39Practice set
    Consider the following statements: 1. While warm deserts occur in tropical areas, cold deserts occur exclusively in areas beyond the Arctic Circle. 2. Sand dunes are not prominent features in cold deserts.Which of the above statements is/are correct?
    • A1 only
    • B2 only
    • CBoth 1 and 2
    • DNeither 1 nor 2
    Answer: (B) 2 only
    Explanation

    Option b is the correct hot and dry deserts, also known as arid deserts, are warm and dry year-round. Some deserts include the Sahara deserts are still dry but have extremely low comparison to the other types of deserts. The Antarctic example of a cold l is incorrect. Cold deserts are also found latitudes. Gobi Desert is a mid-latitude desert. desert is an excessively dry region with an located between 30 degrees and 60 degrees north of the equator. Cold deserts are also found in For example, Ladakh region has a cold desert in Tibetan Plateau, a rain shadow in Tibet, China, has the Himalayan mountain range to thank for its 2 is correct. Sand dunes are not in cold deserts, but snow dunes occur commonly where precipitation is locally more abundant

40. #40Practice set
    Consider the following statements regarding the 'Desert' ecosystem: 1. Most of the animals in the hot desert ecosystem are diurnal. 2. Playas are temporary lakes formed in arid and semi-arid areas. 3. Many of the hot deserts of the world are located on the western coasts of continents.How many of the above statements are correct?
    • AOnly one
    • BOnly two
    • CAll three
    • DNone
    Answer: (B) Only two
    Explanation

    Option b is the correct are areas that receive very little some deserts are very hot, with as high as other deserts winters or are cold l is incorrect. Desert habitats are difficult in. Most of the animals living in deserts are during night). They hide underground during when it is very hot and emerge at night. Most of who live in the desert are insects, scorpions, spiders. Most of the mammals who live in the very small, but large mammals like camels, gazelles have adapted to deal with the very dry can survive for long periods of time without that are diurnal are usually awake and active 2 is correct. Playas are temporary lakes water collects in intermontane basins in arid areas. The playas range in areal extent from a metres to tens of square kilometres. These are 'khabari' and 'mamlaha' in Arabian deserts while they as 'shatts' in Sahara. Playa lakes may last for or even longer before

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