Question

water freezes in the cracks of rocks and then expands, breaking the rocks apart. this is an example of __________ weathering. a biological b chemical c erosional d physical

Explanation:

Physical weathering involves the breakdown of rocks without a change in their chemical composition. When water freezes in rock cracks and expands, it is a physical process as it is due to the physical property of water expanding upon freezing, not a biological, chemical, or erosional (which involves transportation) process.

Answer:

D. physical