QQuestionGeology
QuestionGeology
"Which of the following is an example of chemical weathering?
A. The breaking of rocks into smaller pieces due to freeze-thaw cycles
B. The cracking of rocks from plant root growth
C. The hydrolysis of feldspar minerals to form clay minerals
D. The abrasion of rocks by wind-blown sand"
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Answer
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Step 1: Identify the process in each option
For each option, we need to determine if it is a type of chemical weathering. Chemical weathering involves chemical changes to the minerals in rocks due to reactions with air, water, or other substances.
Step 2: Analyze option A
Option A describes the breaking of rocks into smaller pieces due to freeze-thaw cycles. This process is physical weathering, not chemical weathering, as it only involves the breakdown of rocks into smaller pieces without changing the minerals' chemical composition.
Final Answer
The example of chemical weathering from the given options is option C: The hydrolysis of feldspar minerals to form clay minerals.
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