Which of the Following Best Explains Why Angular, Crack-Bounded, Granitic

question 125

Multiple Choice

Which of the following best explains why angular, crack-bounded, granitic blocks weather to spheroidal boulders?

• A)Weathering agents have more direct access to edges and corners than to other parts of the block.
• B)Interiors of blocks are constantly damp or wet because sunlight cannot penetrate.
• C)Crack surfaces of blocks heat and cool more rapidly than edges and corners.
• D)They slowly roll over in place and wear off the corners first.

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