SSC 200 Exam 2 quizzes Exam #1 Questions with Correct Answers
Which of the following statements is true?
A. Sheet erosion is most obvious from a distance.
B. Rill erosion channels can be removed by ordinary cultivation.
C .Rill erosion is the most serious in forested areas.D.Gully erosion carries the most sediment
away from lands in the United States.
E. Rill erosion is initiated before water concentrates in small 1-2 cm channels. - ✔✔B.Rill
erosion channels can be removed by ordinary cultivation.
"Living" terraces involving rows of deep rooted grasses planted on the contour would be
considered as contributing to which factor in the Universal soil-loss equation?
A.S
B.L
C.P
D.K
E.R - ✔✔C.P
Which of the following statements about soil erosion is not true?
A.Soil erosion losses of potassium exceed those of nitrogen and phosphorus.
B.The rate of soil erosion loss in the United States declined from 1980 to 1995.
C.Soil erosion losses per hectare of cropped land are higher in Asia and Africa than the United
States.
D.Less than 20 percent of the total soil erosion in the United States comes from croplands.
E.Downstream off-site costs of erosion are often higher than those in upstream fields from
which the soil came. - ✔✔D.Less than 20 percent of the total soil erosion in the United States
comes from croplands.
In explaining erosion processes to a friend, which of the following would you say about
accelerated erosion?
, A.It refers to sediment carried by water flowing at ever greater velocity.
B.It is increasing in intensity in the United States, especially in the past 10 years.
C.It involves a much less rapid process than geological erosion.
D.It is greatly enhanced by the splash effect of raindrops impacting bare soil.
E.it removes more nitrogen from the surface soil than calcium - ✔✔D.It is greatly enhanced by
the splash effect of raindrops impacting bare soil.
Conservation tillage systems are said to have all of the following advantages but one over
conventional tillage systems ________.
A.its labor and energy requirements are lower
B.it involves the use of less toxic weed control practices
C.it increases the hydraulic conductivity of the soil
D.it reduces soil erosion
E.it encourages higher microbial population numbers in the soil - ✔✔B.it involves the use of less
toxic weed control practices
If you want to maximize the quantity of vegetative cover on soil which of the following tillage
practices would you use?
Question 6Select one:A.no-tillageB.conventional moldboard plowC.ridge tillageD.stubble
mulchE.strip till - ✔✔A.no-tillage
Wind erosion is generally not affected by ________.
A.bulk density of the soil
B.soil texture
C.soil pH
D.soil moisture
E.soil crusting - ✔✔C.soil pH
Which of the following statements is true?
A. Sheet erosion is most obvious from a distance.
B. Rill erosion channels can be removed by ordinary cultivation.
C .Rill erosion is the most serious in forested areas.D.Gully erosion carries the most sediment
away from lands in the United States.
E. Rill erosion is initiated before water concentrates in small 1-2 cm channels. - ✔✔B.Rill
erosion channels can be removed by ordinary cultivation.
"Living" terraces involving rows of deep rooted grasses planted on the contour would be
considered as contributing to which factor in the Universal soil-loss equation?
A.S
B.L
C.P
D.K
E.R - ✔✔C.P
Which of the following statements about soil erosion is not true?
A.Soil erosion losses of potassium exceed those of nitrogen and phosphorus.
B.The rate of soil erosion loss in the United States declined from 1980 to 1995.
C.Soil erosion losses per hectare of cropped land are higher in Asia and Africa than the United
States.
D.Less than 20 percent of the total soil erosion in the United States comes from croplands.
E.Downstream off-site costs of erosion are often higher than those in upstream fields from
which the soil came. - ✔✔D.Less than 20 percent of the total soil erosion in the United States
comes from croplands.
In explaining erosion processes to a friend, which of the following would you say about
accelerated erosion?
, A.It refers to sediment carried by water flowing at ever greater velocity.
B.It is increasing in intensity in the United States, especially in the past 10 years.
C.It involves a much less rapid process than geological erosion.
D.It is greatly enhanced by the splash effect of raindrops impacting bare soil.
E.it removes more nitrogen from the surface soil than calcium - ✔✔D.It is greatly enhanced by
the splash effect of raindrops impacting bare soil.
Conservation tillage systems are said to have all of the following advantages but one over
conventional tillage systems ________.
A.its labor and energy requirements are lower
B.it involves the use of less toxic weed control practices
C.it increases the hydraulic conductivity of the soil
D.it reduces soil erosion
E.it encourages higher microbial population numbers in the soil - ✔✔B.it involves the use of less
toxic weed control practices
If you want to maximize the quantity of vegetative cover on soil which of the following tillage
practices would you use?
Question 6Select one:A.no-tillageB.conventional moldboard plowC.ridge tillageD.stubble
mulchE.strip till - ✔✔A.no-tillage
Wind erosion is generally not affected by ________.
A.bulk density of the soil
B.soil texture
C.soil pH
D.soil moisture
E.soil crusting - ✔✔C.soil pH
