NCERT Class 11 Chapter 3 Geography Interior of the Earth MCQ

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1. What are constantly shaping the landscape?

A. exogenic processes

B. endogenic processes

C. both of them

D. both of them

2. What is the radius of earth?

A. 6370 km

B. 6360 km

C. 6380 km

D. 6380 km

3. Which one is the direct source of providing information about the interior of the earth?

A. Deep Ocean Drilling Project

B. Volcanic eruptions

C. Integrated Ocean Drilling Project

D. all of them

4. Which one is the indirect source of providing information about the interior of the earth?

A. volcanic eruption

B. gravitational force

C. drilling projects

D. Ocean Integrated Drilling Project

5. The temperature and pressure increases through

A. mining

B. drilling

C. volcanic

D. gravitational

6. The gravitation force (g) at different latitudes on the surface is

A. same

B. different

C. decreases towards the poles

D. increases towards the equator

7. Earthquake is

A. shaking of the earth

B. release of heat

C. evolution of gases

D. none of them

8. Name the point from which energy is released?

A. core

B. mantle

C. focus

D. body

9. What is called the point on the surface?

A. Hypocentre

B. Focus

C. Epicentre

D. Body centre

10. Which instrument records the waves reaching the surface?

A. Seismograph

B. Richter scale

C. Demographics

D. none of these

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11. Earthquake waves are of types

A. two

B. three

C. five

D. four

12. How many types of Body waves are there?

A. two

B. five

C. four

D. six

13. Which wave moves faster to arrive at the surface?

A. ‘P’

B. ‘S’

C. ‘P’ and ‘S’

D. none of these

14. Which wave moves slowly to arrive at the surface?

A. P

B. S

C. surface waves

D. body waves

15. In w hat form the seismograph gives the record of the waves?

A. frequency

B. amplitude

C. both of them

D. none of them

16. Which waves are most destructive?

A. body waves

B. surface waves

C. P-waves

D. S-waves

17. Surface waves are classified into

A. Love

B. Rayleigh

C. both

D. none of these

18. What type of earthquake is generated due to sliding of rocks?

A. Reservoir induced

B. Tectonic

C. Explosion

D. Collapse

19. The tremors which occur due to the explosion of chemical or nuclear devices are called

A. Collapse

B. Explosion

C. Volcanic

D. Tectonic

20. The magnitude of an earthquake is measured on

A. Seismograph

B. Richter scale

C. none of these

D. both of these

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21. The magnitude is expressed in absolute number

A. 0 to 10

B. 1 to 12

C. 0 to 12

D. 1 to 10

22. What generates the tsunami waves?

A. earthquake

B. tremors

C. volcanic eruption

D. meteor

23. What is the velocity of ‘P’ waves?

A. 5-6 km/s

B. 10-20 km/s

C. 1-3 km/s

D. 8-10 km/s

24. The outermost part of the solid earth is known as

A. core

B. crust

C. mantle

D. none of these

25. What is the mean density of material in oceanic crust?

A. 3 g/cm³

B. 2.7 g/cm³

C. 1 g/cm³

D. 3.8 g/cm³