How do plants break rocks and turn to soil?
A. They break rocks through waves.
B. They break rocks through blowing it.
C. They break rocks by growing in it that causes rocks to break into pieces.
D. They break rocks through repeated expansion and contraction of rocks.
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Answer:
C. They break rocks by growing in it that causes rocks to break into pieces.
Explanation:
Plants and animals can be agents of mechanical weathering. The seed of a tree may sprout in soil that has collected in a cracked rock. As the roots grow, they widen the cracks, eventually breaking the rock into pieces. Over time, trees can break apart even large rocks.