Class 11 Geography Chapter 2 The Earth'S Structure Quiz 7 (25 MCQs)

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1. What is the tilt angle of the Earth's axis during rotation?
2. What is the third layer of Earth?
3. The crust underneath the oceans.
4. An opening in the Earth's surface through which magma and gases erupt
5. Where does the energy that drives convection currents inside the Earth's Crust come from?
6. Which sphere would mountain ranges fall under?
7. A deep well or mine shaft goes through which layer or layers of Earth?
8. What are the three types of rocks
9. There is a hot spot under ..... National Park, where the heat causes boiling mud pools and ..... like Old Faithful.
10. If the Earth's mantle were completely solid, ..... plates could not move around.
11. What was the name of the supercontinent during the Triassic period?
12. What does the theory of continental drift state?
13. What is the 'peak' of a mountain?
14. What causes weathering?
15. Earthquakes typically occur at this type of boundary.
16. What do scientist believe to cause the tiny wobble in Earth's spin?
17. "Diverge" means .....
18. As you move deeper into the Earth, ..... and ..... increase.
19. What indirect evidence have scientist used to determine the size of Earth's layers?
20. Plates of the lithosphere float on the .....
21. Why was Wegener's theory not accepted?
22. What happens to temperature as we move from the crust down into the inner core?
23. The asthenosphere is part of which layer of Earth?
24. Which state of matter is the earth's inner core?
25. Which causes rift valleys?