Welcome to your Social Studies Grade 8 Unit 1

General Direction: Read the following questions Carefilly and Choose the correct answer from the given alternatives .

 

1. 
Folding is the bending of rock layers due to ---

2. 
Which internal force causes properly damage and loss of life:-

3. 
Which of the following is Fold Mountain in Africa?

4. 
Which one of the following features represents ahole formed on the top of the cone of volcano?

5. 
Rift Valleys and block mountains are the major land features forced by:-

6. 
Which of the following is a good example of cone shaped volcanic mountain in Ethiopian

7. 
Which of the following is convincing about active volcanoes?

8. 
Which of the following are disadvantages of vocanic eruption?

9. 
The point at which an earth quake originates is called: ----

10. 
Which one of the following layers of atmosphere has high concentration of ozone?

11. 
Which of the following is not an external force?

12. 
Wihch of the following factors are responsible for both chemical and physical Weathering?

13. 
A sudden movement in the earths crust is called

14. 
Which of the following is not the cause of physical weathering?

15. 
A limestone column that hangs down from the ceiling of the cave is ------

16. 
Which one is not associated with wind action?

17. 
How does sheet erosion occur?

18. 
What is the strongest force of erosion in the desert area?

19. 
Which one of the following is a sand hill that has a crescent moon shape?

20. 
Which of the following would be correcting older from upper to lower layer of the atmosphere?

21. 
What is the second most abundant gas in the earth’s atmosphere?

22. 
The fronsfer of energy from one body to another by means of electromagnetism Waves

23. 
Which of the following is correctly matched?

24. 
If the ranges of earth quake is more than 8 is

25. 
Which one of the following is the difference between the temperatures of the hottest and coldest months in a year?

26. 
Which tradition climate zone is associated with tropical areas:-

27. 
The process in which ice changes directly in to water uapour is called

28. 
Which one of the following types of rain fall is occurs when two air masser

(Worm and cold) meet together is called:-

29. 
Which one of the following is not extrusive land forms?

30. 
How the Great Rift valley in Africa was formed it was formed due to the process of:-

31. 
The process by which molten rock is forced out to the surface of the earth is called:-

32. 
Which of the following is not associated with earth quake?

33. 
An ideal example or Active volcano in Ethiopia is

34. 
Which traditional climate zone is asso ciated with Afro-Alpine areas?

35. 
The average of all weather conditions of an area over along peroid of time is:-

36. 
During the summer season of the northern hemisphere, Ethiopia experiences: -----

37. 
The movement of broken rock and soil particles from one area to another is calld: ---

38. 
Which one of the following layer of the atmosphere is coldest part of the atmosphere?

39. 
Which one of the following atmospheric gas is the most important for living things?

to exist on planet earth?

40. 
The lowering of the land by wearing away of the surface of the earth is called: ---

41. 
Which one of the following types of erosion occurs when heavy rain fall rushes down a steep slope?

42. 
Which of the following is an extemal forces shapes the earth’s surface?

43. 
Which of the following factors that may not affect elements of weather and climate?

44. 
How do faults occur?

45. 
Which of the following is the largest rift valley in the world?

46. 
Which of the following is the challenge of globalization?

47. 
The process which causes complete change in the internal structure of rock is called: ---

48. 
Which one of the following is a mushroom shaped body of intrusive igneous rock?

49. 
Fold mountains are formed from: ----

50. 
------- is the bending of rock layers due to earth movements from one or two side

51. 
The point at which an earthquake originates is called ---

52. 
which one is Advantages of volcanic eruption

53. 
--------are dead volcanoes that are not expected to erupt in the future

54. 
which one is example of active volcano

55. 
-------is formed when magma solidifies in a vertical or near-vertical crack.

56. 
The magma that reaches the surface is called

57. 
which one is not the main cause of Physical weathering

58. 
which is a type of running water erosion

59. 
------------ extends from the tropopause up to about 50 km