Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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All of the following cause mechanical weathering EXCEPT ____.
a. | ice | c. | burrowing animals | b. | tree roots | d. | carbonic acid |
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2.
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Chemical weathering is more rapid in a ____ climate.
a. | warm, dry | c. | cold, dry | b. | warm, wet | d. | cold, wet |
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3.
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Mechanical weathering is more rapid in a ____ climate.
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4.
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The rock and mineral fragments in soil come from rock that has been ____.
a. | blasted | c. | weathered | b. | carved | d. | chemically
treated |
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5.
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Ice wedging is brought about by ____.
a. | carbonic acid freezing on rocks | c. | water freezing and
thawing | b. | water and oxygen reacting | d. | rocks colliding with each other |
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6.
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Oxidation occurs when materials containing ____ are exposed to oxygen and
water.
a. | iron | c. | kaolinite | b. | carbonic acid | d. | all of the
above |
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7.
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Mechanical weathering ____.
a. | breaks apart rocks by physical processes | b. | occurs when chemical
reactions dissolve or change the minerals in rocks | c. | occurs when iron is exposed to oxygen and
water | d. | none of the above |
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8.
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Chemical weathering ____.
a. | is caused by freezing and thawing | b. | breaks apart rocks by physical
processes | c. | occurs when chemical reactions dissolve or change the minerals in
rocks | d. | none of above |
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9.
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In areas where freezing and thawing occur frequently, rocks weather rapidly
because of the ____ of freezing water.
a. | evaporation | c. | leaching | b. | expansion | d. | oxidation |
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10.
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When water mixes with carbon dioxide gas in the air or soil, ____ forms.
a. | carbonic acid | c. | calcite | b. | lactic acid | d. | oxygen |
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