True/False
Indicate whether the
statement is true or false.
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1.
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In Ohio there are more than 475
significant and unique combinations of soil conditions.
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2.
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A terrace often appears as a
step-like surface or bench-like surface feature between the higher uplands and lower flood
plains.
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3.
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Alluvium is material such as
sand, silt,or clay that is deposited on land by streams.
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4.
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Glacial till is a firm subsoil
horizon that is hard and brittle when dry and somewhat brittle when moist.
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5.
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Settling of organic soils,
soils containing semi fluid layers, or materials that are dissolved in solution is called
subsidence.
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6.
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A rise of fall of 30 feet in
100 feet of horizontal distance is a 30 percent slope.
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7.
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The presence of sand and/gravel
in the substratum of soils rarely means it is a terrace landform.
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8.
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A septic tank absorption field
can be placed in a soil with mottling at 27 inches if a drainage system is designed and implemented
to effectively lower the seasonal high water table.
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9.
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Areas subject to flooding can
be used as sites for lawns, gardens, and landscaping.
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10.
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Gravel is the largest of the
primary soil particles.
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11.
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Soil slippage can create
irregular soil surfaces with hummocks and depressions.
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12.
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A well-developed subsoil is
always present in the soils located in floodplains.
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13.
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Shrink swell activity is
greatest influenced by organic matter content.
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14.
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Frost action is the freezing
and thawing of soil moisture causing a heaving and settling of the surface soil.
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15.
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A hard dense soil layer within
4 severely limits the use of a soil for septic tank absorption fields.
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