Question

A plant root presses against a rock, causing it to crack. This is an example of _____. chemical weathering biological weathering physical weathering erosion

Answer 1

biological weathering

Answer 2

The answer is physical weathering ! (it's also called mechanical weathering). .Physical weathering is a process that makes the rocks smaller by cracking them into smaller parts, but without changing their chemical composition - each part of the cracked rock retains the original chemical composition.