CESSWI EXAM PART 3 Questions and Answers
1. Which of the following statements is (are) true?
a. Sheet erosion refers to soil loss caused by the movement of ice
sheets across a landscape
b. Gullies are scars that are small enough to be smoothed by natural
tillage
c.Erosion is most likely when rainfall rate exceeds the soil's infiltration
capacity
d. Rills on cropland are too large for a tractor to pass over
e. both answers b and d are correct
ANS Erosion is most likely when rainfall rate exceeds the soil's infiltration capacity
2. Which of the following factors is (are) important in
determining erosion potential?
a. Seasonal distribution of rainfall
b. Structural stability of the soil
c. Vegetation cover
d. None of the above
e. All of the above
ANS All of the above
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, 3. The reason forest soils tend to be less easily eroded than cropland
soils is
.
a. Logging roads allows water to drain freely
b. Litter protects the forest floors from the impact of rain drops
c. Tree leaves often concentrate the water from many small
raindrops into a few large ones, which affect a smaller soil surface
area when they fall
d. forest soils are sandy
e. Both answers a and c are correct
ANS Litter protects the forest floor from the impact of rain drops
4. Which of the following statements regarding wind erosion is (are)
accurate?
a. Wind erosion is most common in humid areas
b. Saltation is the movement of salts so that they accumulate on soil
surface
c. Dust clouds are usually the result of soil creep
d. sandy soils are often more easily eroded by wind more than clayey
soils
e. Both answers b and c are correct
ANS Sandy soils are often more easily eroded by wind more than clayey soils
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1. Which of the following statements is (are) true?
a. Sheet erosion refers to soil loss caused by the movement of ice
sheets across a landscape
b. Gullies are scars that are small enough to be smoothed by natural
tillage
c.Erosion is most likely when rainfall rate exceeds the soil's infiltration
capacity
d. Rills on cropland are too large for a tractor to pass over
e. both answers b and d are correct
ANS Erosion is most likely when rainfall rate exceeds the soil's infiltration capacity
2. Which of the following factors is (are) important in
determining erosion potential?
a. Seasonal distribution of rainfall
b. Structural stability of the soil
c. Vegetation cover
d. None of the above
e. All of the above
ANS All of the above
1/
11
, 3. The reason forest soils tend to be less easily eroded than cropland
soils is
.
a. Logging roads allows water to drain freely
b. Litter protects the forest floors from the impact of rain drops
c. Tree leaves often concentrate the water from many small
raindrops into a few large ones, which affect a smaller soil surface
area when they fall
d. forest soils are sandy
e. Both answers a and c are correct
ANS Litter protects the forest floor from the impact of rain drops
4. Which of the following statements regarding wind erosion is (are)
accurate?
a. Wind erosion is most common in humid areas
b. Saltation is the movement of salts so that they accumulate on soil
surface
c. Dust clouds are usually the result of soil creep
d. sandy soils are often more easily eroded by wind more than clayey
soils
e. Both answers b and c are correct
ANS Sandy soils are often more easily eroded by wind more than clayey soils
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