Question

mid-term review
chemical weathering is the alteration of minerals within rocks by water and gases, often causing them to disintegrate.
biological weathering is driven by organisms like plants, lichens, and mosses, accelerating rock breakdown by chemically altering rock substances.
image of a plant sprout in hands with soil
how does biological weathering occur?

• plants, lichens, and mosses accelerating breakdown
• by chemically breaking down rocks by gases
• due to physical factors such as freezing and thawing

Explanation:

The question asks how biological weathering occurs. The provided definition states biological weathering is driven by organisms like plants, lichens, and mosses that accelerate rock breakdown by chemically altering rock substances. The correct option directly reflects this definition, while the other options describe chemical weathering (gases) or physical weathering (freezing/thawing).

Answer:

plants, lichens, and mosses accelerating breakdown