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Internal Structure Of Earth Quiz 1 (46 MCQs)

Quiz Instructions

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1. The fourth layer of earth described by Vander Gracht is .....
2. Earth flows normally take place:
3. The interior layer of the earth which is subjected to great heat and pressure is known technically as the barysphere. Which part of the earth does it refer to:
4. Oxygen in earth crust is ......
5. Mohorovic Discontinuity is the difference of density from:
6. The ..... Layer circumscribes the entire planet but is exposed only in ocean basins.
7. Temperature of core could be:
8. Monsoon winds are largely caused by the differences in ..... between the land and the sea:
9. Silicon found in earth crust.....
10. The fourth layer of ultra basic rocks is known as ..... layer.
11. ..... of outer layer prevents the core from becoming a liquid or gas.
12. Inner core of the earth contains:
13. Radius of solid inner core is ..... miles.
14. Earthquake waves ..... in velocity upon entering the mentle.
15. When earth and moon are farthest:
16. ..... has divided the entire earth into two broad divisions.
17. The most rigid and crystallize part of earth is .....
18. If an earthquake occurs at 0 degree P and S waves are recorded everywhere to ..... degrees from its source.
19. Temperature of ..... ranges from 3000
20. Thickness of core is:
21. Mesosphere extends up to ..... km:
22. ..... is the densest of all layers
23. When three heavenly bodies are in same line, that situation is:
24. ..... rocks are there in oceanic crust.
25. ..... Waves move material in their path parallel to the direction of movement.
26. Liquid outer core is ..... thick.
27. ..... has oxides of iron, magnesium and silicon.
28. When earth and moon are nearest that position is called:
29. ..... of mental material produces convection currents beneath the surface of the earth.
30. Continental crust accounts only about ..... of the earth's global surface.
31. Most widespread rocks in the world are:
32. Seismic waves are the result of:
33. When material breaks away due to earth flow it normally leaves:
34. An average depth of Sial varies from ..... km.
35. The crust accounts for ..... of earth's mass.
36. ..... waves move objects at right angles to their direction of motion.
37. Two parts of the crust are:
38. 95% of the lithosphere is composed of:
39. ..... is the least rigid sometimes described as plastic in nature.
40. Core has a pressure of ..... times greater than the atmospheric pressure ..... billion.
41. Continental crust consists of ..... rocks.
42. According to Jaffery's division the 3rd layer is made up of .....
43. The proportion of ..... rocks decreases with depth.
44. For every 108 feet descent bellow the surface of earth temperature rises for .....
45. Hanging valleys are formed by the action of:
46. Just beneath the rigid lithosphere a soft layer of upper mental is called:
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