Question

weathering and erosion quick check
which is correct about chemical weathering and physical weathering? (1 point)
○ both chemical and physical weathering are processes that break down rocks.
○ chemical and physical weathering are both examples of reactions that make new materials.
○ chemical weathering does not change the rock itself, whereas physical weathering will change the rock.

Explanation:

Physical weathering breaks rocks into smaller pieces without altering their chemical composition, while chemical weathering changes the rock's chemical structure to form new materials. Both processes are defined as breaking down rocks. The second option is incorrect because physical weathering is not a chemical reaction. The third option is incorrect because chemical weathering does alter the rock itself.

Answer:

Both chemical and physical weathering are processes that break down rocks.