Lesson 8.01 Soil Erosion and Human Impact

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1. Which type of water erosion is caused by droplets of falling rain colliding with the soil causing it to be moved or displaced a short distance?
   1. rain splash
   2. rill
   3. gulley
   4. sheet

   Answer: a. rain splash

2. Which of the following agents causes the greatest amount of soil erosion
   1. gravity
   2. water
   3. wind
   4. glaciers

   Answer: b. water

3. Which of the following ways does wind move small particles of sand that enter the atmosphere after being dislodged and can be carried long distances by the winds in the atmosphere
   1. gravity
   2. erosion
   3. suspension
   4. saltation

   Answer: c. suspension

4. What is the permanent destruction of forestland to make it available for other uses

   1. deforestation
   2. desertification
   3. erosion
   4. saltation

   Answer: a. deforestation

5. Which agent of erosion is when snow and ice builds up and slowly moves over land masses in mountains areas and is at the north and south poles

   1. glaciers
   2. water
   3. wind
   4. gravity

   Answer: a. glaciers

6. What type of water erosion occurs when water travels in small channels causing soil erosion as it moves?
   1. rain splash
   2. sheet erosion
   3. gulley erosion
   4. rill erosion

   Answer: d. rill erosion

7. What is it called when wind causes medium sized particles to become dislodged from the soil and bounce across the land dislodging other soil particles?
   1. Soil creep
   2. Suspension
   3. Saltation
   4. Rain splash

   Answer: c. Saltation

8. This occurs when areas that are not in desert climates begin to have desert like conditions
   1. Saltation
   2. Soil creep
   3. desertification
   4. deforestation

   Answer: c. desertifcation

9. This process by wind causes large soil particles to slide across the ground

   1. desertification
   2. suspension
   3. soil creep
   4. saltation

   Answer: a. soil creep

10. What is the uniform removal of soil over a large area by rain water moving across it?
    1. gullley erosion
    2. sheet erosion
    3. rill erosion
    4. rain splash

    Answer: b. sheet erosion

11. What type of erosion occurs when rain water travels over land in large channels down a slope?
    1. gullley erosion
    2. sheet erosion
    3. rill erosion
    4. rain splash

    Answer: a. gulley erosion

12. ___ is an agent of erosion that causes soil particles to move down hills or slopes.
    1. saltation
    2. water
    3. glaciers
    4. gravity

    Answer: d. gravity