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Class 7 Geography Chapter 2 Inside Our Earth Quiz 8 (60 MCQs)

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1. The mantle forms ..... % and the core makes up ..... % of the earth
2. How deep is the continental crust?
3. How many stones are used in Pitthoo game
4. What forms the oceanic crust?
5. How deep is the deepest mine in the world is?
6. What is the depth of crust under oceans?
7. What are the types of rocks?
8. The temperature of the Earth in the centre is about .....
9. The Earth is about ..... crore years old
10. The Earth's crust is made of different types of rocks. Any natural mass of mineral matter that makes up the Earth's crust is called a rock, and rocks can be of different colours, sizes and textures. Which are the three main types of rocks?
11. Which of the following landforms is formed by wind erosion?
12. Choose an organic mineral.
13. Good example of Metamorphic rock is
14. ..... is composed of the heaviest materials
15. Geography is the study of Earth's interior
16. What is the word for semi-liquid form
17. What is uppermost layer of the earth's surface
18. Granite, chalk, clay and salt are examples of
19. Minerals are naturally occurring substances which have certain ..... properties and definite ..... composition.
20. Which type of rocks is called primary rocks
21. Tajmahal is built with
22. What is the one type of rocks
23. Basalt is an example of ..... rocks.
24. Grinding stones used to make paste /powder of spices, is made of
25. The crust is ..... % of the Earth
26. Fossil is found in
27. What process involves rocks rolling down, cracking, and breaking into smaller fragments?
28. What is crust made of
29. The crust is made of minerals, and the main mineral constituents of the crust in the continental mass are alumina and silica. What is this also known as?
30. The main mineral constituents of the crust are?
31. Which layer of the Earth extends up to a depth of 2900 km below the crust?
32. The inner most layer is?
33. The mantle is about ..... km thick.
34. Rocks formed by cooling of molten magma on the Earth's surface are called .....
35. Man mineral constituent in core is
36. WHICH ROCK IS DIVIDED INTO INTRUSIVE AND EXTRUSIVE ROCKS?
37. The Continental crust is composed of
38. What is the diameter of Kola Superdeep Borehole?
39. Igneous is a ..... word meaning .....
40. Igneous is word of which language?
41. Which process is necessary for the formation of igneous rocks?
42. Ammonia is a ..... ?
43. Why is the inner core solid?
44. Hard woood trees found in Deciduos forests are .....
45. It is estimated that the whole of the ocean crust is about ..... years old.
46. Which of the following are the examples of metamorphic rocks
47. What is the radius of inner core?
48. Aggregates of minerals are known as
49. The deepest hole engineers have dug is ..... km deep.
50. The highest point on the earth's surface is the .....
51. Most widely available rocks
52. The temperature inside the innermost part of the Earth is estimated to be-
53. The main mineral constituents found in the Continental crust is?
54. The Earth is made of several layers, with the crust at the top, the core inside, and the mantle in the middle. The crust is the thinnest of all the layers of Earth; it is only 5 km on the ocean floors. How deep/thick is the crust in continental masses (land)?
55. The gas that makes up the realm of the Earth.
56. And when igneous and sedimentary rocks are subjected to heat and pressure, which type of rocks do they change into?
57. An earthquake is measured with the machine called a
58. Which of the following is an intrusive igneous rock?
59. What is the thinnest layer of the Earth's interior?
60. What are fossils?
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