The paragraph is modeling the process of erosion. Erosion occurs when water carries away soil, clay, and other materials, leaving behind larger components like pebbles as the finer materials wash away.
Use the paragraph to answer the question.
A soft lump of clay has water run on top of it. Most of the water and clay runs off the table. After a long while, the water is turned off and allowed to dry. There is no clay left; instead, there are small pebbles and other types of components left on the table.
Which natural process is this modeling?
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