PSS FINAL EXAM| QUESTIONS WITH CORRECT ANSWERS 100% SOLVED| GUARANTEED
SUCCESS
the upper layers of soil that do not include the transition zone between soil and bedrock are
called the _____? Solum
which of the following soil structural types is most likely to impede water movement in a soil
profile? Platy
the layers of contrasting material found when one digs a hole in the ground are called
horizons
these parent materials typically form in wet areas with low decomposition rates that may also
receive runoff from surrounding uplands organic
a soil developed in this type of parent material will likely have properties closely related to the
bedrock below the C horizon residual
debris that has been ground, transported, and deposited directly by the movement of large ice
sheets till
water deposited parent material that are further classified into floodplains, fans, and deltas
alluvial
, made of poorly sorted rock fragments detached from heights above and carried downslope by
gravity, potentially assisted by wind and water colluvial
wind-transported parent materials that include dune sand, loses, dust, and volcanic ash
eolian
of the three particle size classes that make up the fine earth fraction, name the one that has the
highest specific surface area clay
organic matter constitutes only 1 or 2 percent of the soil by weight, and has a negligible
influence on soil properties false
the C horizons are generally more completely weathered than the overlying horizons false
compared to a similar soil under minimal or no-tillage, a soil with a long history of conventional
tillage would have less macropore space true
chemical weathering is accelerated by water, oxygen, and organic/inorganic acids moving down
through the regolith true
the topsoil horizons are the most reliable determinant of soil classification false
SUCCESS
the upper layers of soil that do not include the transition zone between soil and bedrock are
called the _____? Solum
which of the following soil structural types is most likely to impede water movement in a soil
profile? Platy
the layers of contrasting material found when one digs a hole in the ground are called
horizons
these parent materials typically form in wet areas with low decomposition rates that may also
receive runoff from surrounding uplands organic
a soil developed in this type of parent material will likely have properties closely related to the
bedrock below the C horizon residual
debris that has been ground, transported, and deposited directly by the movement of large ice
sheets till
water deposited parent material that are further classified into floodplains, fans, and deltas
alluvial
, made of poorly sorted rock fragments detached from heights above and carried downslope by
gravity, potentially assisted by wind and water colluvial
wind-transported parent materials that include dune sand, loses, dust, and volcanic ash
eolian
of the three particle size classes that make up the fine earth fraction, name the one that has the
highest specific surface area clay
organic matter constitutes only 1 or 2 percent of the soil by weight, and has a negligible
influence on soil properties false
the C horizons are generally more completely weathered than the overlying horizons false
compared to a similar soil under minimal or no-tillage, a soil with a long history of conventional
tillage would have less macropore space true
chemical weathering is accelerated by water, oxygen, and organic/inorganic acids moving down
through the regolith true
the topsoil horizons are the most reliable determinant of soil classification false
