2023 Prelims PYQs
1] Ilmenite and rutile, abundantly available in certain coastal tracts of India, are rich sources of which one of the following? [2023]
a) Aluminium
b) Copper
c) Iron
d) Titanium
Show Answer
Ans: d) Titanium
2] Consider the following statements: [2023]
1. In a seismograph, P waves recorded earlier than S waves.
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?
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2
Show Answer
Ans: c) Both 1 and 2
2022 Prelims PYQs
1] In the northern hemisphere, the longest day of the year normally occurs in the: [2022]
a) First half of the month of June
b) Second half of the month of June
c) First half of the month of July
d) Second half of the month of July
Show Answer
Ans: b) Second half of the month of June
2019 Prelims PYQs
1] On 21st June, the Sun: [2019]
a) Does not set below the horizon at the Arctic Circle
b) Does not set below the horizon at Antarctic Circle
c) Shines vertically overhead at noon on the Equator
d) Shines vertically overhead at the Tropic of Capricorn
Show Answer
Ans: a) Does not set below the horizon at the Arctic Circle
2] The word ‘Denisovan’ is sometimes mentioned in media in reference to: [2019]
a) Fossils of a kind of dinosaurs
b) An early human species
c) A cave system found in North-East India
d) A geological period in the history of Indian subcontinent
Show Answer
Ans: b) An early human species
2018 Prelims PYQs
1] Which of the is/are the possible consequences of heavy sand mining in riverbeds? [2018]
1. Decreased salinity in the water
2. Pollution of groundwater
3. Lowering of the water label
Select the correct answer using the code below:
a) 1 only
b) 2 and 3 only
c) 1 and 3 only
d) 1, 2 and 3
Show Answer
Ans: b) 2 and 3 only
2014 Prelims PYQs
1] Which of the following phenomena might have influenced the evolution of organisms? [2014]
1. Continental drift
2. Glacial cycles
Select the correct answer using the code given below.
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2
Show Answer
Ans: c) Both 1 and 2
2013 Prelims PYQs
1] Variations in the length of daytime and night-time from season to season are due to? [2013]
a) The earth’s rotation on its axis
b) The earth’s revolution round the sun in an elliptical manner
c) Latitudinal position of the place
d) Revolution of the earth on a titled axis
Show Answer
Ans: d) Revolution of the earth on a titled axis
2] On the planet earth, most of the freshwater exists as ice caps and glaciers. Out of the remaining freshwater, the largest proportion? [2013]
a) Is found in atmosphere as moisture and clouds
b) Is found in freshwater lakes and rivers
c) Exists as groundwater
d) Exists as soil moisture
Show Answer
Ans: c) Exists as groundwater
3] Consider the following: [2013]
1. Electromagnetic radiation
2. Geothermal energy
3. Gravitational force
4. Plate movements
5. Rotation of the earth
6. Revolution of the earth
Which of the above are responsible for bringing dynamic changes on the surface of the earth?
a) 1, 2, 3, and 4 only
b) 1, 3, 5 and 6 only
c) 2, 4, 5, and 6 only
d) 1, 2, 3, 4, 5, and 6
Show Answer
Ans: d) 1, 2, 3, 4, 5, and 6
4] Contour Bunding is a method of soil conservation used in? [2013]
a) Desert margins, liable to strong wind action
b) Low flat plains, close to stream courses, liable to flooding
c) Scrublands, liable to spread of weed growth
d) None of the above
Show Answer
Ans: d) None of the above
2012 Prelims PYQs
1] Which one of the following sets of elements was primarily responsible for the origin of life on the Earth? [2012]
a) Hydrogen, Oxygen, Sodium
b) Carbon, Hydrogen, Nitrogen
c) Oxygen, Calcium, Phosphorus
d) Carbon, Hydrogen, Potassium
Show Answer
Ans: b) Carbon, Hydrogen, Nitrogen
2] A person stood alone in a desert on a dark night and wanted to reach his village which was situated 5 km 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: [2012]
a) Direction facing the polestar
b) Direction opposite to the polestar
c) Direction keeping the polestar to his left
d) Direction keeping the polestar to his right
Show Answer
Ans: c) Direction keeping the polestar to his left
2010-1995 Prelims PYQs
1] With reference to the soil conservation, consider the following practices: [2010]
1. Crop rotation
2. Sand fences.
3. Terracing
4. Wind breaks
Which of the above are considered appropriate methods for soil conservation in India?
a) 1, 2 and 3 only
b) 2 and 4 only
c) 1, 3 and 4 only
d) 1, 2, 3 and 4
Show Answer
Ans: d) 1, 2, 3 and 4
2] In the structure of planet Earth, below the mantle, the core is mainly made up of which one of the following? [2009]
a) Aluminium b) Chromium
c) Iron d) Silicon
Show Answer
Ans: c) Iron
3] Which of the following pairs is/are correctly matched? [2008]
Theory/Law
1. Continental Drift
2. Expansion of Universe
3. Photoelectric Effect
Associated Scientist
Edwin Hubble
Alfred Wegener
Albert Einstein
Select the correct answer using the code given below:
a) 2 and 3 only b) 3 only
c) 2 only d) 1 only
Show Answer
Ans: b) 3 only
4] In order of their distance from the Sun, which of the following planets lie between Mars and Uranus? [2008]
a) Earth and Jupiter
b) Jupiter and Saturn
d) Saturn and Earth
d) Saturn and Neptune
Show Answer
Ans: b) Jupiter and Saturn
5] What is the approximate mean velocity with which the Earth moves round the Sun in its orbit? [2006]
a) 20 km/s b) 30 km/s
c) 40 km/s d) 50 km/s
Show Answer
Ans: b) 30 km/s
6] Assertion (A): The same face of the Moon is always presented to the Earth.: [2005]
Reason (R): The Moon rotates about its own axis in 23 days which is about the same time that takes to orbit the Earth.
a) Both (A) and (R) are individually true and R is the correct explanation of A
b) Both (A) and (R) are individually true and R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
Show Answer
Ans: c) A is true but R is false
7] Assertion (A): Existence of human life on Venus is highly improbable.: [2005]
Reason (R): Venus has an extremely high level of carbon dioxide in its atmosphere.
a) Both (A) and (R) are individually true and R is the correct explanation of A
b) Both (A) and (R) are individually true and R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
Show Answer
Ans: a) Both (A) and (R) are individually true and R is the correct explanation of A
8] Consider the following statements: [2005]
1. The axis of the earth magnetic field is inclined at 23 to the geographic axis of the earth.
2. The earth’s magnetic pole in the northern hemisphere is located on a peninsula in northern Canada.
3. Earth’s magnetic equator passes through Thumna in South India.
Which of the statements is/are correct?
a) 1, 2 and 3 b) 2 and 3
c) 2 only d) 3 only
Show Answer
Ans: b) 2 and 3
9] Consider the following statements: [2005]
1) Total land area of earth is approximately 1475 lakh square kilometres.
2) Ratio of land area to water area of earth is approximately 1: 4.
3) Maximum percentage of earth’s water is in the Pacific Ocean.
Which of the statements given above are correct?
a) 1 and 3 b) 2 and 3
c) 1 only d) 3 only
Show Answer
Ans: a) 1 and 3
10] Which one of the following is the correct sequence of the given Continents in the decreasing order of their percentage of earth’s land? [2005]
a) North America, Africa, South America, Europe
b) Africa, North America, South America, Europe
c) North America, Africa, Europe, South America
d) Africa, North America, Europe, South America
Show Answer
Ans: b) Africa, North America, South America, Europe
11] Consider the following geological phenomena: [2004]
1. Development of a fault
2. Movement along a fault
3. Impact produced by a volcanic eruption
4. Folding of rocks
Which of the above cause earthquakes?
a) 1, 2 and 3 b) 2 and 4
c) 1, 3 and 4 d) 1, 2, 3 and 4
Show Answer
Ans: d) 1, 2, 3 and 4
12] Identify the correct order of the processes of soil- erosion from the following: [2001]
a) Splash erosion, Sheet erosion, Rill erosion, Gully erosion
b) Sheet erosion, Splash erosion, Gully erosion, Rill erosion
c) Rill erosion, Gully erosion, Sheet erosion, Splash erosion
d) Gully erosion, Rill erosion, Sheet erosion, Splash erosion
Show Answer
Ans: a) Splash erosion, Sheet erosion, Rill erosion, Gully erosion
13] Consider the following statements: [2001]
I. Most magmas are a combination of liquid, solid and gas.
II. Water vapour and carbon dioxide are the principal gases dissolved in a magma.
III. Basaltic magma is hotter than the silicic magma.
IV. The magma solidified between sedimentary rocks in a horizontal position is known as dike.
Which of these statements are correct?
a) I, II and III b) II, III and IV
c) I and IV d) I, II and IV
Show Answer
Ans: a) I, II and III
14] Consider the following statements regarding the earthquakes: [2001]
I. The intensity of earthquake is measured on Mercalli scale.
II. The magnitude of an earthquake is a measure of energy released.
III. Earthquake magnitudes are based on direct measurements of the amplitude of seismic waves.
IV. In the Richter scale, each whole number demonstrates a hundredfold increase in the amount of energy released.
“Which of these statements are correct?
a) I, II and III b) II, III and IV
c) I and IV d) I and III
Show Answer
Ans: a) I, II and III
15] Consider the following statements made about the sedimentary rocks: [2001]
I. Sedimentary rocks are formed at Earth’s surface by the hydrological system.
II. The formation of sedimentary rocks involves the weathering of preexisting rocks.
III. Sedimentary rocks contain fossils.
IV. Sedimentary rocks typically occur in layers.
Which of these statements are correct?
a) I and II b) I and IV
c) II, III and IV d) I, II, III and IV
Show Answer
Ans: d) I, II, III and IV
16] Volcanic eruptions do not occur in the: [2001]
a) Baltic Sea b) Black Sea
c) Caribbean Sea d) Caspian Sea
Show Answer
Ans: a) Baltic Sea
17] A ship sailing from the eastern extremity of the Aleutian Islands to Dutch harbour crosses 180° meridian at 23.30 hrs on January 1, 1999. 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? [1999]
a) January 1, 0030 hrs
b) January 2, 0030 hrs
c) January 3, 0030 hrs
d) January 4, 0030 hrs
Show Answer
Ans: b) January 2, 0030 hrs
18] Which one of the following scholars suggests the earth’s origin from gases and dust particles? [1999]
a) James Jeans b) H. Alfven
c) F. Hoyle d) O. Schmidt
Show Answer
Ans: d) O. Schmidt
19] Which one of the following types of coal contains a higher percentage of carbon than the rest? [1999]
a) Bituminous coal b) Lignite
c) Peat d) Anthracite
Show Answer
Ans: d) Anthracite
20] At which one of the following positions shown in the diagram will the height of the ocean tide be maximum? [1999]

a) M1 b) M2
c) M3 d) M4
Show Answer
Ans: d) M4
21] When there is noon at G. M .T. meridian people on another place of the Earth are taking their 6 o’clock morning tea. The longitude of the place is: [1998]
a) 17° 30’ E b) 7° 30’ W
c) 172° 30’ E d) 90° W
Show Answer
Ans: d) 90° W
22] If the earth’s direction of rotation is reversed, what would be the IST when it is noon at the International Date Line? [1997]
a) 06.30 hrs b) 05.30 hrs
c) 18.30 hrs d) 17.30 hrs
Show Answer
Ans: c) 18.30 hrs
23] Which one of the following is present in the largest amount in terms of per cent by mass in the earth’s crust? [1997]
a) Silicon b) Oxygen
c) Carbon d) Calcium
Show Answer
Ans: b) Oxygen
24] The standard time of the following countries is ahead or behind Greenwich Mean Time depending on whether they are east or west of the longitude passing through Greenwich: [1995]
I. Cuba
II. Greece
III. Iraq
IV. Costa Rica
V. Japan
Which one of the following sequential orders gives the correct arrangement of the countries according to their standard time from ahead to behind GMT?
a) V, III, II, I, IV b) II, IV, I, III, V
c) IV, I, III, II, V d) III, V, IV, I, II
Show Answer
Ans: a) V, III, II, I, IV
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