Challenge Prelims V1.0 – Day 12 – GS Paper (Geography)

1. In the context of our solar system, consider the following statements:

1. The density of Mercury is slightly greater than that of Earth.
2. Mars and Jupiter take more time than earth to revolve around the Sun.
3. Phobos, Ganymede and Titan are the moons of Jupiter, Mercury and Saturn respectively.
4. All planets in the solar system rotate around their own axis from East to West.

How many of the statements given above is/are correct?

2. In the context of geological time scale, arrange the following in decreasing order.

1. Era
2. Eon
3. Epoch
4. Period

Select the correct answer using the code given below.

3. Consider the following statements with respect to the Big Bang Theory (BBT):

1. It is also called the expanding universe hypothesis.
2. It posits that all matter, past and present, in the Universe originated simultaneously.

Which of the statements given above is/are not correct?

4. Consider the following statements with respect to our Solar System:

1. The asteroid belt in the Solar System is located roughly between the orbits of the planets Jupiter and Saturn.
2. Comets that come around every few hundred years are from the Oort Cloud, while those that take thousands of years to return are from the far-off Kuiper belt.
3. There are no Meteorite Craters found in India.

How many of the statements given above is/are correct?

5. Consider the following pairs:

Rock: Type

1. Gabbro: Metamorphic
2. Quartzite: Sedimentary
3. Marble: Igneous Rock

How many of the pairs given above is/are not correctly matched?

6. Consider the following statements regarding the minerals present in the different types of rocks:

1. Generally, metallic minerals are found in igneous and metamorphic rock formations.
2. Non-metallic minerals are found in sedimentary rock formations of plains and young fold mountains.

Which of the statements given above is/are correct?

7. How many of the following are indirect sources of information about the Earth’s interior?

1. Earthquakes
2. Volcanic eruption
3. Rocks obtained from mines
4. Meteors

Select the correct answer using the code given below.

8. Consider the following statements regarding the earth’s crust:

1. Oceanic crust is thicker when compared to continental crust.
2. Continental crust is denser than oceanic crust.
3. Oceanic crust is made up of basaltic rock.
4. The primary driving force behind isostatic adjustments in the Earth’s crust are Buoyancy and gravitational forces.

How many of the statements given above is/are correct?

9. Consider the following statements regarding the interior of the earth:

1. Mantle which forms nearly 83% of the earth’s volume is made up of oxygen, silicon, and magnesium.
2. Asthenosphere is a mechanically weak zone of molten rock in the upper mantle of Earth.
3. The core is made up of material mostly constituted by silica and alumina.

How many of the statements given above is/are correct?

10. Consider the following pairs:

1. Moho discontinuity: separates Crust and upper mantle
2. Guttenberg discontinuity: separates lower mantle and outer core
3. Lehman discontinuity: separates inner and outer core
4. Repetti discontinuity: separates upper and lower crust

How many of the pairs given above are correctly matched?

11. Which of the following statements is not correct regarding the motions of the earth?

12. Consider the following statements:

Statement I: Maximum number of solar eclipses in a year is 2.

Statement II: Earth’s orbit is elliptical in shape.

Which one of the following is correct in respect of the above statements?

13. If you are traveling eastward across the International Date Line, how does your calendar date change?

14. With reference to the Earth’s magnetic poles, consider the following statements:

1. The magnetic poles are stationary and do not change over time.
2. The magnetic poles coincide exactly with the geographic poles.
3. The Magnetic North Pole is always fixed at Ellesmere Island in Northern Canada.

Which of the statements given above is/are correct?

15. Consider the following statements regarding the position of the Earth and Sun:

1. Aphelion position occurs when the Earth is at its greatest distance from the Sun, which generally occurs in January.
2. Perihelion position occurs when the Earth is at its closest distance from the Sun, which generally occurs in July.

Which of the statements given above is/are correct?