Which agent probably contributes most to the genral wearing down of Earth's surface? explain

Question

i know the answer is "running water" but how to explain it?

Answer 1

Turn on a garden hose and aim it at a patch of bare ground. What happens to the dirt when the running water hits it?

Think about river deltas. They are made by the river washing down the dirt from upstream.

The Grand Canyon was largely made over millions of years by running water.

Answer 2

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