How does weathering affect the surface area of a rock? Explain your answer.

A rock's composition is not changed by mechanical weathering. Only the size of the fragments decreases. ... Mechanical weathering breaks rocks down into smaller fragments, and increases the surface area of the over all material. By increasing the surface area, chemical processes may act more easily upon the rock surface.

answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

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