A rock in a harsh desert is slowly breaking down over time. Temperatures in the desert rise quickly during the day and fall quickly at night. These temperature changes cause stress in the rock, and as a result, it is slowly breaking apart.
Which of the following processes is happening to this rock?
A.
erosion by water
B.
physical weathering
C.
erosion by ice
D.
chemical weathering
Answers
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Answer:
B) physical wheathering
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Mechanical weathering breaks rocks into smaller pieces without changing their composition. Ice wedging and abrasion are two important processes of mechanical weathering. Chemical weathering breaks down rocks by forming new minerals that are stable at the Earth's surface.
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