Multiple Choice
Identify the choice that best completes the
statement or answers the question.
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1.
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The difference between mechanical and chemical weathering is ____.
a. | the length of time each takes to break up a rock | b. | that only chemical
weathering involves water | c. | the way they affect the makeup of a
rock | d. | all of the above |
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2.
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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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3.
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The rate of weathering depends upon the area's ____.
a. | oxygen | c. | water | b. | climate | d. | soil |
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4.
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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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5.
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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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6.
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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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7.
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Why is ice wedging most obvious in the mountains?
a. | because the altitude directly contributes to how the water freezes in the cracks of
rocks | c. | because the pressure in the mountains allows for the repeated freezing and thawing of
water caught in cracks of rocks | b. | because gravity pulls on the water in the
cracks more if its found higher in the mountains
| d. | because the temperature changes in the
mountains allow for the repeated freezing and thawing of water caught in cracks of
rocks |
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8.
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Mechanical weathering is more rapid in a ____ climate.
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9.
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When water mixes with carbon dioxide in the air, it forms __________.
a. | sulfuric acid | c. | carbonic acid | b. | hydrochloric acid | d. | ozone |
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10.
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Surface processes that work to break down rock are called__________.
a. | erosion | c. | ice wedging | b. | weathering | d. | oxidation |
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11.
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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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12.
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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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