Questions+41-50+(per+9)

64. Landscape disturbances could vary because of what factors?

A. Humans and community structure B. Intensity and Frequency C. flammability and accumulation D. water and Mr. Hakim

65. What does a surface fire **__not__** harm?

A. frost covered leaves B. Maple Trees C. Roots of grasses D. crowns of trees

66. Fire occurence is determined by...what?

A. When was the last fire B. How many bears there are in the forest C. Was it a crown fire or surface fire D. the rings of the trees in that area

67. Describe canopy/ crown fire

A. not in conferous forrests B. kills most above ground vegetation C. the king has a burnt crown D. goes back to secondary succession

68. How is serotiny related to jack pine? A. causes them to drop seeds in the summer heat B. only occurs in a surface fire C. has nothing to do with it...duh. D. fire causes opening of cones

69. What causes tree uprooting?

A. Windthrow B. Timber Harvesting C. Monsoon D. Chuck Norris E. a and d cause he can do anything. F. giant insects

70. What can erosion to the earth?

A. washes away sediments B. Cuts away banks C. irritates ecosystem D. moves sessile organisms E. All the above F. Not C

71. Which one is true?

A. To many african elephants is okay B. High deer population causes damage C. the beaver the 3rd largest rodent on earth D. cancer has been cured E. both D and C F. You smell

72. What are aquifers?

A. porous rock that contains water B. scuba divers C. where we get aquafina D. nonpermiable rock under the surface E. the second layer of hell

73. What does selection cutting consist of?

A. removal of baby trees before they die of shade intolerance B. removal of trees with gaps C. removal of mature trees D. favors shade tolerant trees E. C and D F. A and B G. favors shade intolerant trees

74. Which is not the cause of the dust bowl? A. lack of crop rotation B. Normal grasses holding the soil removed C. Lack of crops in the area D. drought

75. What is the main incentive for surface mining?

A. obtaining coal, iron,and mercury. B. obtaining coal, iron, and copper. C. obtaining iron, gold, and coal. D. finding the path to middle earth E. building bomb shelters for armegeddon F. hiding from Hakim's class G. where hippes would gather to smoke and talk politics E. haha

Short Answer:

76. Explain the positive and negative effects beavers can have on their enviroment.

77. What occurs when cultivation is constantly occuring in the same area?

78. What are some benefits from a wildfire?

yours truly, Cori Mancuso Joe Franco Kelly Mathiesen