True/False
Indicate whether the
statement is true or false.
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1.
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A rise or fall of four feet in 50 feet is equal to a four percent slope.
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2.
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Almost three-quarters of Ohio’s surface area was covered by
glaciers.
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3.
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Glacial lake deposits are primarily clay and silt size sediment.
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4.
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Soils formed in lacustrine sediment are considered to be on uplands.
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5.
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The presence of sand and/or gravel in the substratum of soils always means it is
a terrace landform.
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6.
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A well developed subsoil is always present in the soils located in
floodplain’s.
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7.
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Soil slippage can create irregular soil surfaces with hummocks and
depressions.
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8.
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Clay is sticky and plastic when moist and cannot be seen under an ordinary
microscope.
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9.
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Muck soils have extremely high water holding capacity.
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10.
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A loamy texture can have equal proportions of sand, silt, and clay.
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11.
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Shrink swell activity is greatest influenced by organic matter content.
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12.
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The soil is commonly used as a secondary or tertiary treatment of
effluent.
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13.
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Subsidence is the loss of volume that occurs in clayey soils upon drying.
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14.
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A clayey soil can contain various amounts of rock fragments.
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15.
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A septic tank absorption field placed in a soil with mottling at 27 inches
should have a drainage system designed and implemented to effectively lower the seasonal high water
table.
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