SSC 200: The Erosion & Sedimentation of Soil Exam #1 Questions
with Correct Answers
Vegetative barriers planted on the contour have been found to create low-cost "natural"
terraces.
Select one:
True
False - ✔✔True
Wind erosion is generally not affected by ________.
Select one:
a. soil crusting
b. soil moisture
c. soil pH
d. soil texture
e. bulk density of the soil - ✔✔c. soil pH
A soil has been managed using a no-till system for 10 years following many years of
conventional tillage operations. Which of the following changes in surface soil properties would
you expect due to the no-till management system?
Select one:
a. aggregate stability would decline
b. bulk density would increase
c. the earthworm population would decline
d. soil pH would increase
e. organic matter content would increase - ✔✔e. organic matter content would increase
In the United States, losses of soil due to wind and water erosion decreased by nearly 40%
between 1982 and 2003.
, Select one:
True
False - ✔✔True
The total global soil lost through erosion is generally greater from gully erosion than from sheet
erosion.
Select one:
True
False - ✔✔False
The T values are the maximum losses of soil by erosion that can be tolerated without a
reduction in the soil's long term productivity.
Select one:
True
False - ✔✔True
Hydraulic conductivity is commonly higher in soils on which conventional tillage systems have
been used than where no-tillage systems have been followed.
Select one:
True
False - ✔✔False
The universal soil-loss equation (USLE) suggests that soil erosion loss is a product of all but one
of the following factors:
Select one:
a. sloped steepness
b. slope length
c. climate
with Correct Answers
Vegetative barriers planted on the contour have been found to create low-cost "natural"
terraces.
Select one:
True
False - ✔✔True
Wind erosion is generally not affected by ________.
Select one:
a. soil crusting
b. soil moisture
c. soil pH
d. soil texture
e. bulk density of the soil - ✔✔c. soil pH
A soil has been managed using a no-till system for 10 years following many years of
conventional tillage operations. Which of the following changes in surface soil properties would
you expect due to the no-till management system?
Select one:
a. aggregate stability would decline
b. bulk density would increase
c. the earthworm population would decline
d. soil pH would increase
e. organic matter content would increase - ✔✔e. organic matter content would increase
In the United States, losses of soil due to wind and water erosion decreased by nearly 40%
between 1982 and 2003.
, Select one:
True
False - ✔✔True
The total global soil lost through erosion is generally greater from gully erosion than from sheet
erosion.
Select one:
True
False - ✔✔False
The T values are the maximum losses of soil by erosion that can be tolerated without a
reduction in the soil's long term productivity.
Select one:
True
False - ✔✔True
Hydraulic conductivity is commonly higher in soils on which conventional tillage systems have
been used than where no-tillage systems have been followed.
Select one:
True
False - ✔✔False
The universal soil-loss equation (USLE) suggests that soil erosion loss is a product of all but one
of the following factors:
Select one:
a. sloped steepness
b. slope length
c. climate
