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MCQ on Interior of the Earth | Quiz on Interior of the Earth | Geography UPSC Prelims

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

a) Earthquake waves

b) Volcanoes 

c) Gravitational force

d) Earth magnetism


Answer. b) Volcanoes 


2. Which one of the following is an indirect source of information about the interior of the earth?

a) Deep Ocean Drilling

b) Volcanoes 

c) Mining

d) Falling Meteorites


Answer. d) Falling Meteorites

3. Which one of the following describes the lithosphere:

a) upper and lower mantle 

b) crust and upper mantle

c) crust and core

d) mantle and core


Answer. b) crust and upper mantle


4. Which of the following is the thinnest layer of the earth?

a) Crust

b) Mantle

c) Outer Core

d) Inner core


Answer. a) Crust


5. Moho’s discontinuity is ----

b) the boundary between crust and Mantle

b) the boundary between Mantle and Core

c) the Boundary between the Inner core and Outer Core

d) Boundary between the upper and lower mantle


Answer. b) the boundary between crust and Mantle


6. Lehmann’s discontinuity is ----

b) the boundary between crust and Mantle

b) the boundary between Mantle and Core

c) the Boundary between the Inner core and Outer Core

d) Boundary between the upper and lower mantle


Answer. c) the Boundary between the Inner core and Outer Core


7.  Gutteberg’s discontinuity is ----

b) the boundary between crust and Mantle

b) the boundary between Mantle and Core

c) the Boundary between the Inner core and Outer Core

d) Boundary between the upper and lower mantle


Answer. b) the boundary between Mantle and Core


8. Repiti discontinuity is ----

b) the boundary between crust and Mantle

b) the boundary between Mantle and Core

c) the Boundary between the Inner core and Outer Core

d) Boundary between the upper and lower mantle


Answer. d) Boundary between the upper and lower mantle


9. Sometimes Core is also referred to as?

a) SiAl layer

b) SiMa layer

c) SiAl and SiMa layer

d) Nife layer


Answer. d) Nife layer


10. Which of the following layer is in liquid form?

a) Asthenosphere

b) Lower Mantle

c) Upper Core

d) Lower Core


Answer. c) Upper Core


11. Which of the following layer is in semi-liquid form?

a) Asthenosphere

b) Lower Mantle

c) Upper Core

d) Lower Core


Answer. a) Asthenosphere


12. Continental crust is also referred to as?

a) SiAl 

b) SiMa 

c) SiAl and SiMa 

d) Nife


Answer. a) SiAl 


13. Oceanic crust is also referred to as?

a) SiAl 

b) SiMa 

c) SiAl and SiMa 

d) Nife


Answer. b) SiMa 


14. The innermost layer of the earth is

a) Crust 

b) Core

c) Mantle

d) Asthenosphere


Answer. b) Core


15.  The thickest layer of the earth is

a) Crust 

b) Mantle 

c) Core

d) Asthenosphere


Answer. b) Mantle 


16. Thickness of the Crust in the Himalayan region is about

a) 65 km

b) 70 km

c) 100 km

d) 150 km


Answer. b) 70 km


17. Which element is the most abundant element found in the earth's crust?

a) Oxygen

b) Silicon

c) Iron

d) Aluminium


Answer. a) Oxygen ( 47 %)


18. Which element is the second most abundant element found in the earth's crust?

a) Oxygen

b) Silicon

c) Iron

d) Aluminium


Answer. b) Silicon ( 28 %)


19. Which layer of the earth is responsible for the Earth's magnetic field?

a) Crust

b) Mantle

c) Inner Core

d) Outer Core


Answer. d) Outer Core


20. Which element is the most abundant element found in the entire earth

a) Oxygen

b) Silicon

c) Iron

d) Aluminium


Answer. c) Iron ( 35%)


21.  Which element is the second most abundant element found in the entire earth

a) Oxygen

b) Silicon

c) Iron

d) Aluminium


Answer. a) Oxygen ( 30 %)


22. 


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29 December 2023 at 11:39 ×

Super experience give more questions

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