Short Answer
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Use the diagram to answer each question.
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1.
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In
which layer of soil in the diagram would you find humus? What is the soil in this layer
called?
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2.
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Which
layer of soil in the diagram is made up only of partly weathered rock? What is this layer
called?
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3.
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Which
layer in the diagram provides the basic material that forms soil? Of what material is this layer
made?
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4.
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Which
layer of soil in the diagram contains clay and minerals but little humus? What is this layer
called?
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5.
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What
is litter and where can you find it in the diagram?
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6.
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The
top three layers in the diagram are the three soil horizons. Which of the soil horizons forms last?
Explain your answer.
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Use the diagram to answer each question.
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7.
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In
which parts of the United States are mountain soils found?
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8.
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Compare the soils in the eastern and central United States.
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9.
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Which
of the six soils are common to all the United States, including Alaska and Hawaii?
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10.
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What
types of soils occur in the United States, excluding Alaska and Hawaii?
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11.
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Which
soils are found in Alaska?
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12.
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Which
soil type in the United States covers the smallest area?
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