Which of the following is true about how weathering affects fractured rocks?

A) Weathering affects rocks from the outside in, forming an outer weathered zone or rind.
B) Weathering attacks corners from three sides and so these are preferentially removed.
C) Preferential weathering along fractures can cause blocks to become rounded.
D) All of these are correct.


D) All of these are correct.

Environmental & Atmospheric Sciences

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During which era of the Historical Evolution of the U.S. City were cities compact, usually about 3-4 miles in diameter?

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