UPSC Prelims PYQs – Origin and Evolution of Earth & Universe (Geography)

1. With reference to the water on the planet Earth, consider the following statements:

1. The amount of water in the rivers and lakes is more than the amount of groundwater.
2. The amount of water in polar ice caps and glaciers is more than the amount of groundwater.

Which of the statements given above is/are correct?

[UPSC Civil Services Exam – 2021 Prelims]

2. Consider the following statements:

1. The Earth’s magnetic field has reversed every few hundred thousand years.
2. When the Earth was created more than 4000 million years ago, there was 54% oxygen and no carbon dioxide.
3. When living organisms orginated, they modified the early atmosphere of the Earth.

Which of the statements given above is/are correct?

[UPSC Civil Services Exam – 2018 Prelims]

3. The terms ‘Event Horizon’, ‘Singularity’, ‘String Theory’ and ‘Standard Model’ are sometimes seen in the news in the context of

[UPSC Civil Services Exam – 2017 Prelims]

4. Consider the following

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?

[UPSC Civil Services Exam – 2013 Prelims]

5. 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

[UPSC Civil Services Exam – 2012 Prelims]

6. What is the difference between asteroids and comets?

1. Asteroids are small rocky planetoids, while comets are formed of frozen gases held together by rocky and metallic material.
2. Asteroids are found mostly between the orbits of Jupiter and Mars, while comets are found mostly between Venus and Mercury.
3. Comets show a perceptible glowing tail, while asteroids do not.

Which of the statement(s) given above is/are correct?

[UPSC Civil Services Exam – 2011 Prelims]