Mount Rushmore National Memorial was created at the height of the Great Depression in the 1930s by the use of explosives and jackhammers to sculpt granitic igneous rock.Which category of weathering (mechanical or chemical)best describes how the rock was broken down? Explain why you believe this is so.

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The Answer of Mount Rushmore National Memorial was created at the height of the Great Depression in the 1930s by the use of explosives and jackhammers to sculpt granitic igneous rock.Which category of weathering (mechanical or chemical)best describes how the rock was broken down? Explain why you believe this is so.

Mount Rushmore National Memorial Was Created at the Height of the Great