Dust is blown from a barren desert and falls onto an area in Texas. The first soil that
forms is most likely an _______.
Entisol
Inceptisol
Oxisol
Vertisol
Mollisol
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, Entisol
Water moves from a clay A horizon down into a sandy/gravelly B horizon, which is
true?
-Water will move into B horizon only after the A is saturated
-Water moves into the B horizon as soon as possible
-Water will move into the B as soon as the wetting front reaches it
-Water moves under an osmotic potential gradient
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Water will move into B horizon only after the A is saturated
When poor aeration occurs for a significant period of time, which process(es) is(are)
likely to occur?
-Negatively impact plants (including possible plant death)
-Element or compound toxicity can change
-Soil color changes from reds to grays
-Reduced decomposition of organic residues
-All of the answers are possible
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-All of the answers are possible
Which of the following best define land degradation:
-Improved productive potential of the land due to man's stewardship
-Reduced productive potential & diminished capacity to provide benefits to humanity
,-Reduced potential for salinization
-A process by which soil is eroded over time to expose subsoil
Give this one a try later!
Reduced productive potential & diminished capacity to provide benefits to
humanity
Which of the following reduces surface evaporation:
-Mulch the soil surface
-Space seeds further apart
-Elimination of weeds
-Limit plant nutrients to slow plant growth
-Irrigation
Give this one a try later!
Mulch the soil surface
When water moves under unsaturated flow, which is true:
-Only micropores are filled and gravitational flow is dominant force moving water
-All water pores are filled and gravitational flow is dominant force moving water
-Only micropores are filled and capillary flow is dominant force moving water
-Only macropores are filled and capillary flow is dominant force moving water
-All water pores are filled and capillary flow is dominant force moving water
Give this one a try later!
Only micropores are filled and capillary flow is dominant force moving
water
, The specific term used to describe deposits of wind blown silt-sized particles that will
serve as parent materials is ____
-Moraine
-Residuum
-Loess
-Alluvium
-Colluvium
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Loess
Which soil property is not affected by land management practices (i.e., it is an
inherent property of the soil)?
-Soil density
-Soil structure
-Aggregation
-Soil texture
-Soil porosity
Give this one a try later!
soil texture
Which process is an example of chemical weathering
-Hydrolysis
-Freeze/thaw cycles
-Fluctuations in temperature
-Abrasion by ice
-Physical abrasion by water
forms is most likely an _______.
Entisol
Inceptisol
Oxisol
Vertisol
Mollisol
Give this one a try later!
, Entisol
Water moves from a clay A horizon down into a sandy/gravelly B horizon, which is
true?
-Water will move into B horizon only after the A is saturated
-Water moves into the B horizon as soon as possible
-Water will move into the B as soon as the wetting front reaches it
-Water moves under an osmotic potential gradient
Give this one a try later!
Water will move into B horizon only after the A is saturated
When poor aeration occurs for a significant period of time, which process(es) is(are)
likely to occur?
-Negatively impact plants (including possible plant death)
-Element or compound toxicity can change
-Soil color changes from reds to grays
-Reduced decomposition of organic residues
-All of the answers are possible
Give this one a try later!
-All of the answers are possible
Which of the following best define land degradation:
-Improved productive potential of the land due to man's stewardship
-Reduced productive potential & diminished capacity to provide benefits to humanity
,-Reduced potential for salinization
-A process by which soil is eroded over time to expose subsoil
Give this one a try later!
Reduced productive potential & diminished capacity to provide benefits to
humanity
Which of the following reduces surface evaporation:
-Mulch the soil surface
-Space seeds further apart
-Elimination of weeds
-Limit plant nutrients to slow plant growth
-Irrigation
Give this one a try later!
Mulch the soil surface
When water moves under unsaturated flow, which is true:
-Only micropores are filled and gravitational flow is dominant force moving water
-All water pores are filled and gravitational flow is dominant force moving water
-Only micropores are filled and capillary flow is dominant force moving water
-Only macropores are filled and capillary flow is dominant force moving water
-All water pores are filled and capillary flow is dominant force moving water
Give this one a try later!
Only micropores are filled and capillary flow is dominant force moving
water
, The specific term used to describe deposits of wind blown silt-sized particles that will
serve as parent materials is ____
-Moraine
-Residuum
-Loess
-Alluvium
-Colluvium
Give this one a try later!
Loess
Which soil property is not affected by land management practices (i.e., it is an
inherent property of the soil)?
-Soil density
-Soil structure
-Aggregation
-Soil texture
-Soil porosity
Give this one a try later!
soil texture
Which process is an example of chemical weathering
-Hydrolysis
-Freeze/thaw cycles
-Fluctuations in temperature
-Abrasion by ice
-Physical abrasion by water
