9. $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 Wind Glaciers GravityGeneralGeneral 2General 3

10. Wind erosion is more common in moist climates than in dry ones. True or False?

11. False

12. Wind erosion is the most common type of erosion in dry climates. True or False?

13. False

14. The area of the dune that faces away from the wind.

15. Leeward side

16. The process of deserts spreading into non-desert areas.

17. desertification

18. Desert pavement is formed by this erosion process.

19. deflation

20. Erosion by gravity is called this.

21. Mass wasting or mass movement

22. The main reason that erosion by gravity has increased in the last hundred years.

23. Human development of the land

24. The ____ the slope, the more likely mass movement will occur.

25. steeper

26. Slides that occur when large masses of soil slip down a curved surface.

27. slump

29. Evidence of this downslope movement of soil is the bending of tree trunks.

30. creep

31. Periods of global cooling that allow glaciers to build up and advance are called this.

32. Ice ages

33. The type of glacial erosion where rocks are lifted out of the ground after a glacier freezes to them.

34. plucking

36. A glacier needs to be this thick before it starts to flow.

37. 20 - 30 meters

38. Glaciers are stationary when flow is _______ melting.

39. Equal to

40. Unsorted glacial deposits.

41. till

42. Valley glacier features are mostly (erosional / depositional).

43. erosional

44. This part of the glacier moves the fastest.

45. center

46. The type of glaciers that occurred here in Central Illinois.

47. continental

48. Two of these moraines come together to form a medial moraine.

49. lateral

51. Continental glaciers have mostly (erosional / depositional) features.

52. depositional

53. The % of an iceberg that is above the water.

54. 10%

55. This erosion process is used by glaciers, wind, waves, and water.

56. abrasion

57. This type of mass wasting does more damage than any other.

58. creep

59. A layer of pebbles on the desert floor that is caused be deflation.

60. Desert pavement

61. Stones that are smoothed down due to excessive abrasion.

62. ventifacts

63. The shape of a valley glacier’s trough.

64. U

65. Type of moraine that forms underneath the glacier.

66. ground

67. The very fine silt that is created by glaciers and wind.

68. loess

70. These types of mass movement move as one cohesive mass.

71. slides

72. These types of mass movement move like a liquid (all mixed up).

73. flows

74. Topic: Glacier movement

75. The relationship between flow and melting that causes end moraines to form.

76. Flow = melting