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Class 7 Geography Chapter 2 Inside Our Earth Quiz 3 (60 MCQs)

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1. The depth of the deepest mine in South Africa is
2. Igneous rocks are made when:
3. Igneous rocks are called primary rocks because .....
4. The word igneous is derived from a Latin word means.
5. What type of rocks are made up of different minerals and have specific physical properties and chemical composition?
6. Slate and Marble is an example of:
7. Pumice is a type of
8. How major types of rocks are there
9. Which layer of the eath is made of heavy metals such as Iron and nickle?
10. Uppermost layer of earth
11. Mantle extends up to the depth of 2900 km
12. The forces which act in the interior of the earth are called .....
13. Continental crust is made up of ..... and oceanic crust is made up of .....
14. The earth is about ..... years old
15. What type of rocks are formed from the cooling and solidification of molten magma on the Earth's surface?
16. If we compare our earth to the lava lamp, we can see how the movement of heat in the center of our earth is like the wax in the lava lamp. This movement of heat is:
17. Where is the deepest mine in the world located?
18. The crust and the outer mantle together form a layer called
19. What is the average density of the earth
20. WHAT IS THE CRUST OF CONTINENT MADE UPM OF?
21. When the molten magma cools, it becomes solid.rocks thus formed are called
22. Lithosphere domain of earth is found on
23. Sedimentary means:
24. The Core forms how much per cent of the volume of the earth,
25. The decan plateu in india is mabe up of
26. Which is not properly matched?
27. The main constituents of the continental mass are ..... and .....
28. The crust under continents is ..... km deep.
29. Ocean crust mainly consists of .....
30. What is the term for the fiery red molten magma coming out from the interior of the earth on its surface?
31. The innermost layer is the mantle with a radius of about 3500 km
32. Identify the sedimentary rock from the following
33. Fossils are remains of dead plants and animals.
34. It lies below the crust.
35. The crust form only ..... percent of the volume of the earth
36. Igneous rocks are also called as
37. Clay, a sedimentary rock changes into ..... under heat and pressure.
38. The depth of deepest mine in south afirca is
39. Name the constituents of oceanic crust
40. 'Sial' is a combination of
41. When the magma solidifies deep inside the earth, ..... rocks are formed.
42. The main mineral constituents of the continental mass is:
43. ..... turn into metamorphic rocks
44. Which of the following is a sedimentary rock?
45. The innermost layer is the core is made of
46. The sediments are transported and deposited by
47. Which layer forms Maximum per cent of thevolume of the earth?
48. Rocks roll down, crack, hit each other, and break down into small fragments called sediments. These small sediments are transported and deposited by wind, water and then compressed and hardened to become layers of sedimentary rocks. From the following, choose an example of sedimentary rock:
49. Which type of rock changes into magma under high heat and pressure, then solidifies to form igneous rocks?
50. ..... is the most abundant gas in the atmosphere.
51. In which season do plants shed their leaves in temperate deciduous forests?
52. Another name for primary rocks?
53. Which of the following is a depositional feature of a glacier?
54. They have a very fine grained structure.
55. The main mineral constituents found in the Central core is?
56. The common mineral in the continental masses and the oceanic crust is .....
57. Which type of rocks are formed when molten magma cools and solidifies?
58. Why is Earth called a dynamic planet?
59. Complete the following sentence:Rock which contains fossils are .....
60. ..... rock are made with sediments
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