which of the following describes a chemical weathering process?

Question

a. slightly acidic rain dissolving a limestone formation over time
b. a river wearing away the riverbed over hundreds of years
c. a rock face collapsing under its own weight
d. plants growing roots into rocks, slowly wedging them apart

Answer 1

The process that best describes chemical weathering is:

a. slightly acidic rain dissolving a limestone formation over time.

Chemical weathering involves the alteration of the chemical composition of rocks and minerals, which is exemplified by the dissolution of limestone by acidic rain. The other options describe physical weathering processes.