Class 11 Geography Chapter 2 The Earth'S Structure Quiz 10 (60 MCQs)

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1. The crust and the uppermost mantle make up the solid layer of hard rock called the
2. Which layer is made of molten rock?
3. The mostly solid, rocky part of the Earth
4. Which layer of Earth is the source of lava that erupts from volcanoes?
5. The theory of continental drift is most associated with which scientist?
6. Volcanoes and mountains are created at .....
7. What type of rock is formed when magma cools and hardens below the Earth's surface or after a volcano erupts .....
8. The layer of the earth's atmosphere where rain occurs is .....
9. When rock particles settle at the bottom of the ocean, they can continue to be buried by other particles. The process of cementation of these particles forms
10. Which of the following layers contains most of the Earth's mass?
11. Which layer of Earth is made up of tectonic plates?
12. Which is an example of sea-floor spreading?
13. By carefully analyzing pages and pages of written data (since there were no computers at the time), Inge Lehmanndetermined
14. An artificial satellite orbits the Earth at a height of 500 km. What is the approximate value of the radius of the satellite's orbit?
15. What is the definition of Core?
16. One of the very large sections of hard, solid rock that make up Earth's outer layer
17. Which type of plate boundary occurs when two plates move away from each other?
18. Which layers of the earth make up the lithosphere?
19. The earth's surface is broken into large pieces called .....
20. Which layer of the Earth is responsible for generating the magnetic field?
21. What is the coolest layer of the Earth?
22. What layer of the mantle has convection currents?
23. What is the correct order of the earth's layers from the outermost to the innermost?
24. In a convection current, the substance is warmed up by a heat source, and then .....
25. Another word for continental is
26. Mantle ..... is the ..... motion of the earth's mantle caused by currents carrying heat from the earth's ..... to the earth's .....
27. What word describes the shape of a geographic area?
28. What process makes the tectonic plates move?
29. What type of rock makes up the crust under the ocean?
30. What type of heat transfer in found in Earth"s asthenosphere?
31. Which layer contains convection currents that causes the tectonic plates of the lithosphere to move?
32. The Ocean crust is composed mainly of materials rich in
33. It is as hot as the surface of the Sun
34. What is the order of the layers?
35. Minerals have ..... structures.
36. What layer of the Earth do we live on?
37. It is the deepest manmade hole on earth.
38. What are Metamorphic rocks?
39. Processes that form and change rocks-
40. Which of the following occurs because of convection currents?
41. Earth lithosphere broken into many large and small slabs of rock.
42. What is the name of the thin layer of solid rock that makes up the outermost part of Earth?
43. Tectonic processes mean Landform-building processes like faulting, folding, etc, caused by the movement of .....
44. The Earth is the only planet in the solar system that supports life.
45. What had an important role in the formation of our solar system?
46. Rock that forms from magma or lava is .....
47. What is the study of earthquakes called?
48. What are the 3 main layers of Earth's interior?
49. What is an underground channel that formed when surface lava hardened before the lava underneath it?
50. What do earthquake waves have in common with other waves?
51. Which of the following occurs at constructive plate margins (where plates are moving apart)
52. Scientists think that convection currents flow in Earth's
53. Which is an example of a convergent (continental to continental) boundary?
54. Which layer of the Earth remains solid despite extreme heat due to immense pressure at the center of the Earth?
55. Sial forms the continents
56. Lava that is still deep inside the earth is called .....
57. Which layer of the Earth is composed of semi-fluid rock and is responsible for generating the Earth's magnetic field?
58. The San Andreas Fault in CA is an example of this type of plate boundary
59. Earth's outer core is made of mostly iron and nickel.
60. Which layer of the Earth is solid and primarily composed of iron and nickel?