MCQ Questions for Class 11 Geography || Ch – 3 Interior of the Earth || With Answer || NCERT CBSE

 1. Which one of the following is a direct source of the information about the interior of the Earth?

(a) Earthquake waves

(b) Volcanoes

(c) Gravitational force

(d) Earth magnetism

► (a) Earthquake waves

2. Which is not a type of volcano?

(a) Shield volcano

(b) Composite volcano

(c) Ridge volcano

(d) Caldera

► (c) Ridge volcano

3. Which one of the following describe the lithosphere?

(a) Upper and middle mantle

(b) Crust and upper mantle

(c) Crust and core

(d) Mantle and core

► (b) Crust and upper mantle

4. The magnitude of earthquake is measured in

(a) Richter Scale

(b) Mercalli scale

(c) Measuring scale

(d) Seismograph

► (a) Richter Scale

5. Which one of the following describe the lithosphere?

(a) Upper and middle mantle

(b) Crust and upper mantle

(c) Crust and core

(d) Mantle and core

► (b) Crust and upper mantle

6. What is the thickness of the earth’s crust in the Himalayan region?

(a) 75 kms

(b) 60 kms

(c) 70 kms

(d) 65 kms

► (c) 70 kms

7. The intensity of earthquake is measured in

(a) Richter Scale

(b) Mercalli scale

(c) Measuring scale

(d) Seismograph

► (b) Mercalli scale

8. The upper portion of mantle is known as

(a) Asthenosphere

(b) Crust

(c) Lithosphere

(d) Fossil Sphere

► (a) Asthenosphere

9. The interior of the earth can only be understood by ______________

(a) Direct methods

(b) Indirect methods

(c) Both the indirect and direct methods

(d) None of the Above

► (c) Both the indirect and direct methods

10. What is the density of the rocks between the adjoining line on mantle and core?

(a) 3-4 gm. per sq. cm 

(b) 5 gm. per sq. cm

(c) 4-5 gm. per sq. cm

(d) 6 gm. per sq. cm

► (b) 5 gm. per sq. cm

11. What is the approximate depth of mantle?

(a) 2400 km

(b) 2900 km

(c) 3200 km

(d) 3500 km

► (b) 2900 km

12. The Deccan trap is a large

(a) flood plain.

(b) flood basalt province.

(c) lava plain.

(d) shield volcano.

► (b) flood basalt province.

13. What is the thickness of the crust?

(a) 10 km to 200 km

(b) 5 km to 30 km

(c) 30 km to 400 km

(d) 100 km to 200 km

► (a) 10 km to 200 km

14. The vibration direction parallel to the wave direction in the vertical plane is present in

(a) P-waves.

(b) S-waves.

(c) Surface waves.

(d) L-waves.

► (a) P-waves.

15. What is the mean thickness of oceanic crust?

(a) 5 km

(b) 30 km

(c) 10 km

(d) 70 km

► (a) 5 km

16. Volcanoes are

(a) indirect source of information about earth’s interior.

(b) direct source of information about the interior of the earth.

(c) not a source of information about the interior of the earth.

(d) good source to ascertain earth’s temperature.

► (b) direct source of information about the interior of the earth.

17. Magma refers to ____

(a) Rocks

(b) Material in upper mantle

(c) Material in upper core

(d) Material in the crust

► (b) Material in upper mantle

18. Earthquake waves are recorded on the

(a) Seismograph.

(b) Barograph.

(c) Pantograph.

(d) Ergograph.

► (a) Seismograph.