Weathering means breaking down rocks from larger whole into smaller pieces by weather, and through weathering, the surface was eroded away, exposing igneous rock. Given these facts, what is the breaking down of whole rocks into smaller pieces among the following options:
- cracking
 - compression
 - rock crumbling
 - loose soil
 - cleavage
 - flooding
 - eroding
 - mechanical


 

       eroding  