Question

which of the following is an example of physical weathering that breaks down rocks into sediment to be used in the formation of new rocks? a. acid rain that begins to dissolve limestone b. water that creates new minerals through hydrolysis c. frost wedging that breaks rocks through the expansion of water d. wind that moves sediment from one location to another

Explanation:

Physical weathering breaks rocks into smaller pieces without changing their chemical composition. Option A is chemical weathering (acid dissolves limestone chemically). Option B is chemical weathering (hydrolysis alters mineral chemistry). Option C is physical weathering: water expands when freezing, prying rocks apart mechanically. Option D is erosion (movement of sediment, not weathering).

Answer:

C. frost wedging that breaks rocks through the expansion of water