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General & Miscellaneous — UPSC Prelims Geography previous year questions

56 solved previous year questions on General & Miscellaneous, papers from 1990 to 2023, drawn from UPSC CDS, UPSC CSE Prelims, State PCS. Each carries the printed answer key and the explanation from the source compilation.

1. #1UPSC CSE Prelims 2022
   Consider the following statements 1. High clouds primarily reflect solar radiation and cool the surface of the Earth. 6. 2. Low clouds have a high absorption of infrared radiation emanating from the Earth's surface and thus cause warming effect.Which of the statements given above is/are correct?
   • A1 only
   • B2 only
   • CBoth 1 and 2
   • DNeither 1 nor 2
   Answer: (D) Neither 1 nor 2
   Explanation

   Option dis the correct a given cloud will heat or cool the surface several factors, including the cloud's altitude, its size, make-up of the particles that form the 1 is incorrect: Low, thick clouds solar radiation and cool the surface of the 2 is incorrect: High, thin clouds incoming solar radiation; at the same time, some of the outgoing infrared radiation emitted by and radiate it back downward, thereby warming of the Earth

2. #2UPSC CSE Prelims 2003
   Among the following which planet takes maximum time for one revolution around the Sun?
   • AEarth
   • BJupiter
   • CMars
   • DVenus
   Answer: (B) Jupiter
   Explanation

   Option bis the correct takes the longest time to complete one the Sun among the four planets given in the orbital period of Jupiter is about 4,333 days or in Earth days. This means that Jupiter takes about longer than Earth to orbit the Sun once.' Important Tips The orbital period of a planet depends on its distance from the Sun and its orbital speed. The farther a planet is from the Sun, the longer its orbital path and the slower its orbital speed. Jupiter is the fifth planet from the Sun and has an average distance of about 778 million kilometers, which is about 5.2 times farther than Earth's distance from the Sun

3. #3UPSC CSE Prelims 2002
   Consider the following statements: Assertion (A): Artificial satellites are always launched from the earth in the eastward direction. Reason The earth rotates from west to east and so the Satellite attains the escape velocity. Code
   • ABoth (A) and (R) are true, and (R) is the correct explanation of (A)
   • BBoth (A) and (R) are true, but (R) is not a correct explanation of (A)
   • C(A) is true, but (R) is false
   • D(A) is false, but (R) is true
   Answer: (D) (A) is false, but (R) is true
   Explanation

   Option dis the correct (A) is false: Artificial satellites are launched earth in the eastward direction. This statement is most satellites are launched in the eastward direction advantage of the Earth's rotation and save fuel. are some exceptions, such as polar satellites, launched in the northward or southward (R) is true: The earth rotates from west to east the Satellite attains the escape velocity. This also true, as the Earth's rotation provides an initial the satellite's velocity, which helps it reach the However, this is not the only factor that escape velocity, which also depends on the mass of the distance of the satellite from the Earth's the direction of the launch

4. #4UPSC CSE Prelims 2002
   Which of the following planets is the farthest planet of the solar system?
   • ANeptune
   • BPluto
   • CSometimes Neptune and sometimes Pluto
   • DMars
   Answer: (C) Sometimes Neptune and sometimes Pluto
   Explanation

   Option c is the correct answer. Pluto is classified as a dwarf planet, not a planet. has an elliptical orbit that sometimes brings it closer Sun than Neptune. The last time this happened was to 1999, when Pluto was the farthest planet from for most of that period. Therefore, the farthest the Sun changes depending on the position of Neptune in their orbits

5. #5UPSC CSE Prelims 1999
   Which of the following scholars has suggested that the Earth originated from the gases and the dust particles?
   • AJames Jeans
   • BH. Alfven
   • CF. Hoyal
   • D0. Schmidt
   Answer: (D) 0. Schmidt
   Explanation

   Option dis the correct scholar who suggested that the Earth originated and dust particles is Otto Schmidt. He proposed Dust Hypothesis in 1943 to explain the of the origin and characteristics of the and Earth. According to this hypothesis sun's gravitational attraction initially drew gases particles from the universe, forming a cloud and revolving around the sun. Over time, these forming embryos of planets, which asteroids and then planets. Satellites also remaining scattned material around the planets. explains the complex problems of the origin of the solar system and the Earth

6. #6UPSC CSE Prelims 1998
   One Astronomical unit is average distance
   • ABetween Earth and Sun
   • BBetween Earth and Moon
   • CBetween Jupiter and Sun
   • DPluto and Sun
   Answer: (A) Between Earth and Sun
   Explanation

   Option a is the correct astrnnomical unit (AU) is the average distance Earth to the Sun, approximately 93 million miles ( km), or 8 light-minutes. One astronomical unit is unit of length for measuring distances within System or around other stars. It is also a in the definition of another unit of the parsec

7. #7UPSC CSE Prelims 1997
   Which one of the following Stars is nearest to the Earth?
   • APolaris
   • BAlpha Centauri
   • CSun
   • DSirius
   Answer: (C) Sun
   Explanation

   Option c is the correct The Sun is the nearest star to Earth, as it is the central our solar system. The Sun is about 8.5 light-minutes Earth, which means that it takes 8.5 minutes for from the Sun to reach us. The Sun is a yellow dwarf provides heat and light for life on Earth. Important Tips Polaris is a yellow supergiant star that is about 433 light-years away from Earth. It is also known as the North Star, as it lies very close to the north celestial pole. Alpha Centauri is a triple star system that is about 4.37 light-years away from Earth. It consists of two sun-like stars, Alpha Centauri A and and a red dwarf star, Proxima Centauri. Proxima Centauri is slightly closer to Earth, at 4.24 light-years away, and may have a rocky planet orbiting it Sirius is a binary star system that is about 8.6 light years away from Earth. It consists of a bright white main sequence star, Sirius A, an

8. #8UPSC CSE Prelims 1997
   If the earth's direction of rotation is reversed, what should be the IST when it is noon at the International Date Line?
   • A06.30 hrs
   • B05.30 hrs
   • C18.30 hrs
   • D17.30 hrs
   Answer: (C) 18.30 hrs
   Explanation

   Option c is the correct Earth rotates from west to east, the International (IDL) is 6 hours 30 minutes ahead of Indian (IST). So, when the time at IDL is 12 PM, the time would be if the earth starts rotating from east to west, IDL will hours 30 minutes behind the IST. Thus, when the time is 12 PM, the time at IST would be at PM

9. #9UPSC CSE Prelims 1993
   The Solar Edipse achieves totality only in limited geographical regions because
   • AThe size of the shadow of the Moon on the Earth is small as compared to the cross section of the Earth
   • BThe Earth is not a smooth flat surface but has elevations and depressions
   • CThe trajectories of the Earth around the Sun and the Moon around the Earth are not perfect circles
   • DSun rays can reach most of the peripheral regions of the shadow of the Moon due to atmospheric refraction
   Answer: (A) The size of the shadow of the Moon on the Earth is small as compared to the cross section of the Earth
   Explanation

   Option a is the correct total solar eclipse occurs when the Moon completely Sun's disk, creating a dark shadow on the Earth umbra. However, the umbra is very narrow, about 150 km (90 miles) wide, and it only covers area of the Earth at a time. Therefore, only people who n.unmli located within this narrow path of totality can see eclipse, while others may see a partial eclipse or at all

10. #10UPPCS 2018
    Consider the following events: 1. First reptiles 2. First insects 3. Shelled animals 4. First mammals Arrange the above events in Chronological order of their origin on the earth andselect the correct answer from the codes given below
    • A2, 1, 3, 4
    • B2, 3, 1, 4
    • C3, 2, 1, 4
    • D2, 4, 1, 3
    Answer: (C) 3, 2, 1, 4
    Explanation

    Option c is the correct chronological order of the origin of the four events is (This order is based on the fossil record): Shelled animals (520 million years ago): The oldest known shelled animals are trilobites, which date back to the Cambrian period, around 520 million years ago. First insects (410 million years ago): Rhyniognatha hirsti has been dated to nearly 410 million years ago, making it the oldest known definitive insect specimen in existence. First reptiles (320 million years ago): The ongm of the reptiles lies about 320-310 million years ago, in the swamps of the late Carboniferous period, when the first reptiles evolved from advanced reptiliomorph labyrinthodonts. First mammals (225 million years ago): The oldest known mammals are small, shrew-like animals that lived 225 million years ago. Table 6.1 Time Srnlc Recent Angiosperms Age of Mammals Quaternary (Holocene) Monocot

11. #11UPPCS 2009
    The 'blue moon' phenomenon occurs when
    • ATwo full moons occur in the same month
    • BFour full moons appear in two consecutive months of the same calendar year. 46
    • CTwo full moons appear in the same month, thrice in a calendar
    • DNone of the above
    Answer: (A) Two full moons occur in the same month
    Explanation

    Option a is the correct full moons occur in the same month. This is the definition of a Blue Moon, which is also known monthly Blue Moon. It happens when there are two in a calendar month, which occurs about once years. The other definition of a Blue Moon is a Moon, which is the third full moon in an that has four full moons. This happens about 2.5 years

12. #12UPPCS 2006
    When any object is taken from the Earth to the Moon?
    • AIts weight increases
    • BIts weight decreases
    • CThere is no change in its weight
    • DIt becomes totally weightless
    Answer: (B) Its weight decreases
    Explanation

    Option bis the correct any object is taken from the Earth to the weight decreases. Weight is the force of gravity an object. The weight of an object depends on the the distance from the center of the object that gravitational force. The moon has a much smaller radius than the Earth, so its gravitational force is Therefore, any object taken from the Earth to will experience a decrease in weight, but not in can use this formula to calculate your weight on Vvmoon is your weight on the moon, is on Earth, 9.81 is the gravitational acceleration and 1.62 is the gravitational acceleration on the example, if the weight is 70 kg on Earth, you would 11.5 kg on the

13. #13State PCS 2003
    On the surface of the moon, two persons cannot listen to each other as
    • ATheir ears stop working at the Moon
    • BThere is no atmosphere on the Moon
    • CThey wear special types of space suits on the Moon
    • DSound travels very slowly on the Moon. 49
    Answer: (B) There is no atmosphere on the Moon
    Explanation

    Option bis the correct is no atmosphere on the Moon. Sound waves need to travel, such as air, water, or solid objects. Moon, there is no air or other medium to carry the so they cannot be heard. Astronauts use radio communicate with each other on the surface of the radio waves can travel through vacuum

14. #14UPSC CDS 2023
    Which of the following groups of planets is termed as 'gas planets' as they are composed primarily of lighter ice, liquids and gases?
    • AJupiter, Neptune, Uranus
    • BJupiter, Uranus, Neptune, Saturn
    • CSaturn, Mars, Jupiter, Neptune
    • DNeptune, Saturn, Mars, Uranus
    Answer: (B) Jupiter, Uranus, Neptune, Saturn
    Explanation

    Option b is the correct planets are planets that are composed primarily ice, liquids and gases. They have no solid surface, atmospheres are very thick. The four gas planets solar system are Jupiter, Saturn, Uranus, and Neptune

15. #15UPSC CDS 2021
    Ozone layer, which absorbs the ultra-violet radiation, is found in which one of the following layers of the atmosphere?
    • AIonosphere
    • BTroposphere
    • CMesosphere
    • DStratosphere
    Answer: (D) Stratosphere
    Explanation

    Option d is the correct ozone layer, which absorbs ultraviolet (UV) located in the stratosphere, the second layer of the between the troposphere and the ozone layer contains a high concentration of molecules and acts as a shield against the UV radiation. By absorbing and filtering out portion of UV rays, the ozone layer organisms from the detrimental effects of exposure, including health issues like skin cancer

16. #16UPSC CDS 2019
    Which one among the following stars is nearest to the Earth?
    • ASirius
    • BArcturus
    • CSpica
    • DProxima Centauri
    Answer: (D) Proxima Centauri
    Explanation

    Option dis the correct Centauri is the star that is nearest to the Centauri is a red dwarf star located in the star system, which is the closest star system to system. It is approximately 4.24 light-years away making it the closest known star to us. Tips Sirius: Sirius is a bright star in the constellation Can Major, and it is the brightest star visible from Earth. Arcturus: Arcturus is a bright star in the constellation It is a relatively nearby star in astronomical terms, but it is not as close to Earth as Proxima Centauri. 1 Spica: Spica is a bright star in the constellation Virgo. It is a relatively distant star compared to Proxima Centauri and is not among the closest stars to Earth

17. #17UPSC CDS 2017
    Which one of the following statements with regard to the winter solstice is correct?
    • AThe South Pole experiences 24 hours of darkness
    • BIt occurs on 21st June
    • CThe North Pole experiences 24 hours of darkness
    • DThe Sun is at aphelion
    Answer: (C) The North Pole experiences 24 hours of darkness
    Explanation

    Option c is the correct the winter solstice, which typically occurs 21st in the Northern Hemisphere, the North 24 hours of darkness. This happens because of the Earth's axis is oriented away from the Sun, Sun's rays to be at their lowest angle and the North be tilted away from the Sun. As a result, the North in continuous darkness for the entire day

18. #18UPSC CDS 2016
    Which one of the following statement are not correct?
    • APosition of the Sun, Earth and Moon in a straight line of angle is known as Syzygy
    • BSyzygy conjunction causes solar eclipse
    • CSyzygy opposition causes lunar eclipse
    • DSyzygy conjunction occurs at the time of perihelion only
    Answer: (D) Syzygy conjunction occurs at the time of perihelion only
    Explanation

    Option d is the correct conjunction can occur at any time, not just at of perihelion Important Tips Syzygy refers to the alignment of three celestial bodies, such as the Sun, Earth, and Moon, in a straight line. During a syzygy conjunction, if the Moon is positioned directly between the Earth and the Sun, it can block the sunlight from reaching certain areas on Earth, resulting in a solar eclipse. During a syzygy opposition, when the Earth is positioned between the Sun and the Moon, the Earth's shadow can fall on the Moon, causing a lunar eclipse

19. #19UPSC CDS 2016
    Which of the following is/are 1. The Earth is nearest to the Sun at Perihelion, which generally occurs on 3rd January. 2. The Earth is farthest away from the Sun at Perihelion, which generally occurs on 4th July. 3. The Earth is farthest away from the Sun at Aphelion, which generally occurs on 4th July. 4. The Earth is nearest to the Sun at Aphelion, which generally occurs on 3rd January.Select the correct answer using the codes given below
    • AOnly 1
    • B2 and 4
    • C1 and 3
    • D1 and 2
    Answer: (C) 1 and 3
    Explanation

    Option c is the correct 1 is correct: The Earth is closest to the Sun which occurs generally on 2 is incorrect: The Earth is farthest from the Aphelion not Perihelion, which occurs generally on 4 3 is correct: The Earth is farthest away from at Aphelion, which generally occurs on 4th 4 is incorrect: The Earth is nearest from the Perihelion, not Aphelion, which occurs generally on

20. #20UPSC CDS 2015
    Which one of the following statements about the atmosphere is correct?
    • AThe atmosphere has definite upper limits, but gradually thins until it becomes imperceptible
    • BThe atmosphere has no definite upper limits, but gradually thins until it becomes imperceptible
    • CThe atmosphere has no definite upper limits, but gradually thickens until it becomes imperceptible
    • DThe atmosphere has definite upper limits, but gradually thickens until it becomes imperceptible
    Answer: (B) The atmosphere has no definite upper limits, but gradually thins until it becomes imperceptible
    Explanation

    Option b is the correct Earth's atmosphere does not have a where it abruptly ends. Instead, it as altitude increases until it merges with the space. This transition is not clearly perceptible, as of gases decreases with increasing altitude, and eventually becomes indistinguishable from the

21. #21UPSC CAPF 2022
    Which one of the following geologic time periods is associated with the first appearance of the marsupials?
    • ALower Cretaceous
    • BUpper Cretaceous
    • CEarly Jurassic
    • DMiddle Jurassic 1
    Answer: (A) Lower Cretaceous
    Explanation

    Option a is the correct first known marsupial fossils date back to the period, which was about 125 million years Lower Cretaceous period occurred approximately 100 million years ago. These fossils were found in and Asia. Marsupials eventually spread to South America, where they diversified into a of species

22. #22UPSC CAPF 2019
    Which one of the following represents an inner planet?
    • APlanets between the Sun and the Earth
    • BPlanets between the Sun and the belt of asteroids
    • CPlanets near the Earth
    • DPlanets around the Sun
    Answer: (B) Planets between the Sun and the belt of asteroids
    Explanation

    Option bis the correct planets refer to the planets that are located Sun and the asteroid belt. These planets Venus, Earth, and Mars. They are called because they are closer to the Sun compared to planets (Jupiter, Saturn, Uranus, and Neptune) located beyond the asteroid belt. Important Tips The inner and outer planets are two groups of planets in our solar system. They have different characteristics and locations relative to the sun. Here are some of the main differences between them: The inner planets are Mercury, Venus, Earth, and Mars. The outer planets are Jupiter, Saturn, Uranus, and Neptune. The inner planets are closer to the sun and have shorter orbits. The outer planets are farther away and have longer orbits. The inner planets are smaller and rockier. They are also called terrestrial planets because they have solid surfaces. The outer planets are larger and gassier. They are a

23. #23UPSC CAPF 2017
    Presence of ozone in the atmosphere is important because it absorbs
    • Aultraviolet-A and ultraviolet-B radiations
    • Bultraviolet-B radiations only
    • Cinfrared-B radiations only
    • Doutgoing ultraviolet-B radiations and incoming ultraviolet-A radiations
    Answer: (B) ultraviolet-B radiations only
    Explanation

    Option bis the correct ozone layer is a region of the upper atmosphere, 15 and 35 km above Earth's surface, high concentrations of ozone molecules (03). layer effectively blocks almost all solar radiation less than 290 nm, which includes UVC Important Tips The Sun emits different types of ultraviolet radiation, classified according to their wavelengths. The shortest wavelength is ultraviolet-C (UVC), which ranges from 100 to 280 nanometers (nm). The next is ultraviolet-B (UVB), which ranges from 280 to 315 nm. The longest is ultraviolet-A (UVA), which ranges from 315 to 400 nm

24. #24State PCS 2016
    Which one of the following layers of atrnosphere has a high concentration of ions?
    • AStratosphere
    • BExosphere
    • CThermosphere
    • DTroposphere - 1
    Answer: (C) Thermosphere
    Explanation

    Option c is the correct thermosphere is the layer of the atmosphere that above the mesosphere and below the exosphere. the hottest layer of the atmosphere, and it has a of ions. The ions in the thermosphere by the interaction of solar radiation with the molecules in the atmosphere l Important Tips Altitude Tenmerature Characteristics Densest layer of atmosphere, contains most of the Earth's Troposphere 0-12 km -56 to 15 atmosphere Ozone layer located in this Stratosphere 12-50 km -56 to O !aver Coldest layer of Mesosphere 50-85 km -56 to -89 atmosphere Ionosphere -89 to 1500 located in this Thermosphere 85-600 km oc !aver Very thin layer of atmosphere, 600-1000 1500-10000 no definite upper Exosphere km oc limit

25. #25State PCS 1993
    If the distance between the sun and the earth is reduced by quarter to present distance, then probability of which one will increase
    • AEarth would fall into the Sun
    • BEarth shall be burned
    • CThe duration of our year will be decreased
    • DEarth will fly into space
    Answer: (C) The duration of our year will be decreased
    Explanation

    Option c is the correct the distance between the sun and the earth is reduced quarter to the present distance, then the duration of will be decreased. This is because the orbital period planet depends on its distance from the Sun, according third law of planetary motion. The law states square of the orbital period is proportional to the cube semi-major axis of the the distance between the Sun and the Earth is reduced quarter, then the semi-major axis of the Earth's orbit be reduced by a quarter. This means that the will be reduced by a factor of 0.5" (3/2), which 0.35. Therefore, the duration of our year decreased by GRAPHY Important Tips Kepler's law of planetary motion: Kepler's laws of planetary motion are three scientific laws that describe how planets orbit the sun. They were discovered by the German astronomer Johannes Kepler in the early 17th century, based on the observations of

26. #26UPSC CSE Prelims 2023
    With reference to the Earth's atmosphere, which one of the following statements is correct?
    • AThe total amount of insolation received at the equator is roughly about 10 times of that received at the poles
    • BInfrared rays constitute roughly two thirds of insolation
    • CInfrared waves are largely absorbed by water vapour that is concentrated in the lower atmosphere
    • DInfrared waves are a part of visible spectrum of electromagnetic waves of solar radiation
    Answer: (C) Infrared waves are largely absorbed by water vapour that is concentrated in the lower atmosphere
    Explanation

    Option c is the correct a is incorrect: While it is true that the more direct sunlight compared to the poles, difference in insolation is not as large as ten difference in insolation between the equator and primarily due to the curvature of the Earth and the tilt axis, resulting in varying angles at which sunlight b is incorrect: Insolation refers to the total received at the Earth's surface, which includes spectrum of electromagnetic radiation. While is a significant component of solar radiation, not account for two-thirds of the insolation. visible light, ultraviolet UV) radiation, and as c is correct: Water vapor is a potent absorber radiation, particularly in certain wavelength the lower atmosphere, where water vapor concentration higher, it absorbs a significant amount of emitted by the Earth's surface. This to the greenhouse effect and plays a crucial regulating the Earth's d is in

27. #27UPSC CSE Prelims 2023
    Consider the following statements 1. In a seismograph, P waves are recorded earlier than S waves. 6. 2. In P waves, the individual particles vibrate to and fro in the direction of wave propagation whereas in S waves, the particles vibrate up and down at right angles to the direction of wave propagation.Which of the statements given above is/are correct?
    • A1 only
    • B2 only
    • CBoth 1 and 2 7
    • DNeither 1 nor 2
    Answer: (C) Both 1 and 2 7
    Explanation

    Option c is the correct answer Statement 1 is correct: P waves, or Primary waves, are waves to arrive at a seismograph. P waves are the waves and can move through solid, liquid, or leave behind a trail of compressions and the medium they move through. P waves are also waves for this reason. 2 is correct: P waves are longitudinal means that the particle motion occurs parallel to of wave propagation. These waves are where particles oscillate back and forth in direction that the wave is traveling. As a result, particles vibrate to and fro in the direction propagation. On the other hand, S waves are where particle motion occurs perpendicular at to the direction of wave propagation. These the particles to move up and down or side to to the direction of the wave. Therefore, in the particles vibrate up and down at right angles direction of wave propagation

28. #28UPSC CSE Prelims 2012
    Which one of the following sets of elements was primarily responsible for the origin of life on the Earth?
    • AHydrogen, Oxygen, Sodium
    • BCarbon, Hydrogen, Nitrogen
    • COxygen, Calcium, Phosphorous
    • DCarbon, Hydrogen, Potassium
    Answer: (B) Carbon, Hydrogen, Nitrogen
    Explanation

    Option b is the correct Hydrogen, Nitrogen were primarily responsible origin of life on the Nitrogen, Oxygen, Phosphorus and with Carbon generated the first group that eventually formed the chemical basis of matter within every living Earth creature mainly just four chemical elements: hydrogen, oxygen, nitrogen

29. #29UPSC CDS 2023
    Consider the following characteristics of a cloud type: 1. They are born through convection. 2. Only cloud type that can produce hail, thunder and lightning. 3. They are large cauliflower-shaped towers, often anvil tops'. Identify the type of cloud on the basis of the given characteristics
    • AStratocumulus
    • BCumulonimbus
    • CCirrocumulus
    • DNimbostratus
    Answer: (B) Cumulonimbus
    Explanation

    Option b is the correct clouds are born through convection, the upward movement of warm, moist air. They for producing hail, thunder, and lightning, the only cloud type associated with these Cumulonimbus clouds are characterized large cauliflower-shaped towers and often have anvil shaped tops due to their vertical development

30. #30UPSC CDS 2017
    Which of the following statements with regard to cloudburst is/are correct? 1. It is defined as sudden localised very heavy downpour with cloud thunder and lightning. 2. It mostly occurs in the hilly areas. 3. It results into very high intensity of rainfall, i.e. 250 mm in a couple of hours. 4. It occurs only during daytime.Select the correct answer using the code given below
    • A1, 2 and 3
    • B1, 3 and 4
    • C2 and 3
    • DOnly 2
    Answer: (A) 1, 2 and 3
    Explanation

    Option a is the correct l is correct- A cloudburst is defined as a and very heavy downpour accompanied and lightning. It occurs over a small 2 is correct- Cloudbursts mostly occur in mountainous areas. The complex topography lifting in such regions can enhance the that lead to the formation of cloudbursts. 3 is correct- Cloudbursts are characterized very high intensity of rainfall, often ranging from to 300 mm or even more in just a couple of hours. heavy rainfall within a short duration can lead floods, landslides, and other related 4 is incorrect- Cloudbursts can happen at although certain atmospheric conditions, such instability and high moisture content, are to their formation

31. #31UPSC CAPF 2015
    Under which of the following are the occluded fronts created? 1. When the front remains stationary. 2. When cold air mass moves to warm air mass. OGRAI'HY 3. When warm air mass moves to cold air mass. 4. When an air mass is fully lifted above the land surface.Select the correct answer using the code given below
    • A1 and 2
    • B2 and 3
    • C3 and 4
    • D4 only
    Answer: (D) 4 only
    Explanation

    Option d is the correct I is incorrect- A stationary front is a front that moving, so it cannot create an occluded 2 is incorrect- A cold air mass moving to a mass can create a cold front, but not an occluded 3 l.i; incorrect- A warm air mass moving to a mass can a front,. but not an occluded 4 is correct- An occluded front is a that forms when a cold air mass overtakes a warm The cold front moves faster than the warm front, eventually catches up tn and lifts the warm air mass over the cold air mass, This creates a complex with a variety of precipitation types. Occluded front front moving this

32. #32JPSC 2013
    Consider the following relief features: 1. Zaskar Range 2. Dhauladhar Range 3. Ladakh Range 4. Karakoram Range The correct south to the northward sequence of the above relief features is
    • A2, 1, 3, 4
    • B2, 3, 4, 1
    • C4, 3, 2, 1
    • D4, 2, 1, 3
    Answer: (A) 2, 1, 3, 4
    Explanation

    Option a is the correct correct south to northward sequence of the feature,; Dhaufadhar Range Ladakh Zaskar Range Karakornm Range

33. #33UPSC CDS 2023
    Which one among the following States has the longest extension in north south direction?
    • AJharkhand
    • BTelangana
    • COdisha
    • DChhattisgarh
    Answer: (D) Chhattisgarh
    Explanation

    Option d is the correct is the state with the longest extension direction. Chhattisgarh has a of about 416 kilometers. Jharkhand has a north south extension of about 388 kilometers, Telangana has extension of about 376 kilometers, and a north-south extension of about 360 kilometers

34. #34UPSC CDS 2023
    Which one of the following Indian States has the longest coastline?
    • ATamil Nadu
    • BGujarat
    • CMaharashtra
    • DAndhra Pradesh
    Answer: (B) Gujarat
    Explanation

    Option b is the correct has the longest coastline in India, with a of 1,600 kilometers. It is followed by 720 kilometers, Andhra Pradesh with 600 Tamil Nadu with 572 kilometers

35. #35Previous year
    D had recently visited Khardung La, Nubra Valley and several Buddhist monasteries. Which one of the following States / UT had she visited?
    • AHimachal Pradesh
    • BUttarakhand
    • CSikkim
    • DLadakh
    Answer: (D) Ladakh
    Explanation

    Option dis the correct had recently visited Khardung La, Nubra Buddhist monasteries which are located in Ladakh

36. #36UPSC CDS 2017
    Arrange the following Tiger Reserves of India from North to South 1. Dudhwa 2. Panna 3. Pench 4. IndravatiSelect the correct answer using the codes given below
    • A4, 3, 2, 1
    • B2, 1, 4, 3
    • C1, 2, 3, 4
    • D1, 3, 2, 4
    Answer: (C) 1, 2, 3, 4
    Explanation

    Option c is the correct correct order of Tiger Reserves of India from North is as follows: Dudhwa Tiger Reserve is located in Uttar Pradesh. Panna Tiger Reserve is located in Madhya Pradesh Pench Tiger Reserve is located in Madhya Pradesh and Maharashtra Indravati Tiger Reserve is located in Chhattisgarh. Important Tips Dudhwa Tiger Reserve: It is situated on the Indo- Nepal border and covers an area of approximately 1,284 square kilometers. The reserve is home to several endangered species, including the Bengal tiger, Indian rhinoceros, swamp deer, and the Gangetic dolphin. Panna Tiger Reserve: Situated in Madhya Pradesh, Panna Tiger Reserve is renowned for its scenic beauty and wildlife. It spans an area of around 542 square kilometers and is characterized by its deep gorges, plateaus, and teak forests. The reserve is known for its successful tiger conservation efforts and is also home

37. #37UPSC CDS 2015
    Match the following:List I (Regions) List (State) A. Baghelkhand 1. West Bengal B. Kuttanad 2. Madhya Pradesh C. Saurashtra 3. Kerala D. Rarh 4. Gujrat Codes
    • A2, 3 4 1
    • B2, 4 3 1
    • C1, 3 4 2
    • D1, 4 3 2
    Answer: (A) 2, 3 4 1
    Explanation

    Option a is the correct answer Baghelkhand - 2. Madhya Pradesh Kuttanad - 3. Kerala Saurashtra - 4. Gujarat Rarh 1. West Bengal

38. #38State PCS 1990
    The Wood of which tree is used for catechu production?
    • ASaal
    • BKhair
    • CBabool
    • DSaaja
    Answer: (B) Khair
    Explanation

    Option bis the correct also known as Acacia catechu, is a tree that the family Fabaceae. It is widely distributed in in the drier and deciduous regions. The Khair is used for catechu production, which is an acacia trees used for various purposes such as astringent, tannin, and dye. Catechu is obtained the wood chips in water and evaporating the Catechu is also known as cutch, black cutch, katha

39. #39Practice set
    Which of the following sources contribute to Space radiatio 1. Solar flares 2. Sun's corona 3. Cell phones 4. Sun's photosphere 5. Van Allen radiation belts. 6. Exploding stars 7. Microwave ovensSelect the correct answer using the code given below
    • A1, 2, 3 and 4 only
    • B4, 5, 6 and 7 only
    • C1, 2, 4, 5 and 7 only
    • D1, 2, 4, 5 and 6 only
    Answer: (D) 1, 2, 4, 5 and 6 only
    Explanation

    Option dis the correct radiation is different from the kinds of radiation on Earth. Space radiation is comprised of which electrons have been stripped away as the in interstellar space to speeds approaching of light - eventually, only the nucleus of the i.e. this radiation consists primarily of which in the toun While radiation on Earth consists of are thref' naturally occurring sources nf particles trapped in the Earth's magnetic field particles shot into space during solar flares (solar particle events) galactic cosmic rays (from Supernova or exploding stars), which are high-energy protons and heavy ions from outside our solar of these kinds of space radiation represent of space radiation from Sun's atmosphere: The photosphere is also the source of solar flares. CME (Coronal mass ejections) are huge bubbles of plasma (ionized atomic matter with high kinetic energy) threa with a magneti

40. #40Practice set
    "It consists of Hydrogen and Helium, as these are the most common and stable compounds in the Universe. These massive collections of hydrogen gas are pulled together by gravity to form star nurseries through the process of fusion:' The informalion given in above paragraph refers to which of the following
    • APulsar
    • BNebulae
    • CPlanetary Nebulae
    • DQuasar
    Answer: (B) Nebulae
    Explanation

    Option b is the correct are clouds of gas and dust which form in They range in size from millions of miles across oflight years across. Nebulas are mostly hydrogen along with smaller amounts of other dust particles. Stars and planetary systems are the gas and dust within nebulae under their own fusion. Like humans, stars are also born at a and place, and their birthplaces are what nebulae or star nurseries. Important Tips Planetary Nebula form when a star runs out of fuel to burn. The star blows off its layers of gas in the shape of a ring or bubble. It is a type of nebula. They are made of gas and plasma. Pulsar- It is a rotating neutron star, that is highly magnetized and it emits a beam of electromagnetic radiation. Quasar- It stands for quasi-stellar object and that refers to any of the celestial objects that are similar to a star a in appearance but has cornparativelyhigh

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