What form of weathering (chemical, mechanical, or biological) and specific sub-type of weathering does the following describe: On the edge of a cliff there is a single tree with roots protruding underneath the cliff edge, creating splits in the cliff in several places.
Explain your reasoning as to why you chose the weathering process in Question 1.
What form of weathering (chemical, mechanical, or biological) and specific sub-type of weathering does the following describe: At the top of a tall mountain hikers notice an interesting change to rocks near the peak. Each year when they return after the cold and wet season they notice large rocks being split in half and are curious what could be causing these rocks to break apart.
Explain your reasoning as to why you chose the weathering process in Question 3