Question

How do plants and trees affect the weathering of rocks?

• A. Plants grow around rocks where roots penetrate and crack the rocks.
• B. Plants grow around rocks and disintegrate the rock into soil.
• C. Water from plants is absorbed by minerals in rock and they are weathered due to expansion and contraction.
• D. Plant roots cause temperature fluctuations within the rocks to cause weathering.

Answer 1

The correct option is A Plants grow around rocks where roots penetrate and crack the rocks.

Tiny plants may sprout up in and around broken rocks. These sprouts turn into bigger plants. As they grow bigger, their roots start penetrating the rock, particularly in weak spots or joints. Eventually, the rock splits.