Questions+41-50+(per+2)

Landscape Disturbance Questions 64. How can you determine when the last fire occurred in an area? Explain 3 Reasons 65. Explain how a surface fire starts, and what weather conditions make it change into a crown fire?

66. What is the difference between clear cutting and selective cutting? What is more damaging? Give two reasons. 67. What is the most common fire? A. Crown fire B. Surface fire C. Ground fire D. Canopy fire E. House fire 68. What kind of Landscape disturbances do humans make? A. Timber harvesting B. Cultivation C. Surface mining D. Droughts E. All of the above AB. A, B, and C AC. None of the above 69. All the following are benefits of fire except: A. Grassland fires consume dead standing materials and return nutrients to soil B. Opens up new areas to sunlight C. Smaller fires prevent building up of debris that can lead to damaging crown fires D. Increases insect population 70.What animal(s) cause damage to trees? A. Elephant B. Owls C. African Honey Bees D. Beaver E. A and D AB. All of the above 71. What caused the Dust Bowl? A. To much rain B. Lack of crop rotation C. A lot of animals D. Not enough sun 72. What is surface mining? A. Maintaining trees, brush, and water B. Maintaining animal life C. Maintaining coal, copper, and iron D. All of the above E. A and C 73. Why do deer damage the forest? A. Eat small animals such as rats B. Over populated C. Not enough competition D. Damage plants E. Both C, and D 74. Why is PA mostly in secondary succession? A. Cultivation B. Surface mining C. Timber harvesting D. High winds 75. What is the second largest rodent on earth? A. Rat B. Beaver C. Mouse D. Nutria 76. What is a landscape disturbance A. When an event occurs that distrubs or disrupts the natural community B. When an event occurs that distrubs or disrupts the plant community C. Varies greatly in intensity and frequency D. A and C

78. What is serotiny? A. When an animal eats a plant seed B. when a cone opens after a ground fire C. when a cone opens after a canopy fire D. none of the above

79.What is it called when trees are knocked down by high winds? A. Wind toss B. Windthrow C. Wind tunnel D. High winds E. Tornado