Question

explain how a plant can cause a rock to weather

Explanation:

Plants can cause physical and chemical weathering. For physical weathering, plant roots grow into cracks in rocks. As the roots grow, they exert pressure, widening the cracks. For chemical weathering, plants release organic acids (from root exudates and decomposition of plant parts) that react with minerals in the rock, breaking them down.

Answer:

Plants cause rock weathering through physical (root - pressure) and chemical (acid - mineral reaction) processes.