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Class 7 Geography Chapter 3 Our Changing Earth Quiz 9 (60 MCQs)

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1. The process of magma rising from the mantle and spreading out at the ridge is called
2. The Earth is ..... changing.
3. Irregular shaped Plates are known as
4. Which of these is a slow change to the Earth's surface?
5. Which particle size is biggest?
6. How does wind erosion typically affect the lower section of mushroom rocks in deserts?
7. Rocks that have layers formed by sediment cemented together are
8. Wind can build up sand dunes.
9. What causes funny rock formations?
10. An earthquake is measured with a machine called a .....
11. Which of the following are referred to as greenhouse gases?
12. Green House gas is
13. A ox-bow lake is formed by
14. ..... is when small pieces of rock move to another location; usually caused by water and wind.
15. What happens to sand when the wind stops blowing in deserts?
16. It is a vent ( opening ) in the earth's crust through which molten material erupts suddenly
17. Which type of endogenic force can result in mass destruction over the earth's surface?
18. Which forces cause the movement of lithospheric plates?
19. The magnitude of Earthquake is measured on the
20. What were the immediate effects of the earthquake on the town of Bhuj?
21. Erosion of sand leads to the formation of deflation hollows?
22. How does flooding impact the neighboring areas of a river?
23. The place on the surface of the earth above the focus
24. What type of sand is carried over long distances by the wind in deserts?
25. People can ..... trash.
26. In the course of time the meander loop cuts off from the river and forms a cut-off lake also called as .....
27. The lithosphere is broken into number of ..... know as the lithospheric plates
28. What is the breaking up of the rocks on the earth's surface
29. When a substance is heated its density
30. Mount Fuji in Japan is ..... mountain?
31. Which is not the work of wind as an agent of erosion and deposition?
32. The earth's crust is broken into a number of huge parts. They are called as
33. What type of force is responsible for the formation of earthquakes?
34. The two outer layers of Earth are composed primarily of-
35. From where does an earthquake start on land?
36. The ..... on the earth's surface causes earthquake.
37. Our Earth always stays the same.
38. Who proposed the theory of continental drift?
39. People recycle, reduce and reuse to help .....
40. Magma, gases, and ashes can erupt through vents in the Earth's surface called-
41. Example of Endogenic
42. Glaciers carve out deep hollows.
43. What is p waves?
44. What are tectonic plates made of?
45. Chilka Lake is locked in Tamil Nadu?
46. What do rivers deposit along their banks during flooding?
47. As the ice from the glaciers melt they get filled up with water and forms the beautiful lakes in mountains. The material carried by the glacier such as rocks, sand, silt, etc. get deposited. What are these deposits called?
48. These fossils provide evidence of the activities of ancient organisms.
49. Highest water fall
50. The place in the crust where the movements starts is called the .....
51. The lithosphere is broken into a number of plates
52. When Earthquake hits bhuj?
53. The place in the crust where the movement start is called
54. What is the cause of the slow movement of lithospheric plates?
55. Which of the following is not true about a mountain?
56. Why does wind erode the land in deserts more quickly?
57. Granite, Obsidian and Pumice are examples of ..... rocks
58. The forces that work on the forces of the earth are called as .....
59. Seafloor spreading occurs at which type of boundary?
60. When large rocks are broken down into smaller parts by physical and chemical means
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