Answer: A) Freezing and expanding
Explanation:
"Physical weathering is caused by the effects of changing temperature on rocks, causing the rock to break apart. The process is sometimes assisted by water. ... Freeze-thaw occurs when water continually seeps into cracks, freezes and expands, eventually breaking the rock apart."
- This is an excerpt from an article; this is the link: https://www.geolsoc.org.uk/ks3/gsl/education/resources/rockcycle/page3561.html#:~:text=Physical%20weathering%20is%20caused%20by,is%20sometimes%20assisted%20by%20water.&text=Freeze%2Dthaw%20occurs%20when%20water,eventually%20breaking%20the%20rock%20apart.
