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What is the most accurate difference between physical weathering and erosion?

Answer and explanation

Correct answer: Physical weathering is in place breakdown while erosion removes material

The direct answer is C: physical weathering breaks rock down at its original place, whereas erosion removes and usually carries the loosened material away. Weathering is the breakdown of rock; erosion is the removal and movement of soil, rock fragments, or sediment by water, wind, ice, or gravity. Step by step: first a rock may crack because of heating, cooling, frost, or root growth; then water, wind, ice, or gravity may carry the pieces elsewhere. Option A is wrong because physical weathering usually changes size and shape, not mineral composition; chemical weathering changes composition. Option B reverses the meaning because erosion involves removal and transport, not only breaking in place. Option C correctly separates breakdown from removal. Option D is wrong because the two processes are related but not identical. Memory cue: weathering stays, erosion goes.

Related tags

PhysicalErosionConceptGeomorphology

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