Question

what is mechanical weathering?​

Answer 1

Mechanical weathering, also called physical weathering and disaggregation, causes rocks to crumble. Water, in either liquid or solid form, is often a key agent of mechanical weathering.

Answer 2

Mechanical weathering, also called physical weathering and disaggregation, causes rocks to crumble. Water, in either liquid or solid form, is often a key agent of mechanical weathering. ... When water freezes, it expands. The ice then works as a wedge. It slowly widens the cracks and splits the rock.