Answer:
-Growth of plants on the rock.
-Temperature and pressure changes in nature.
-Freezing and thawing of water in cracks of the rock.
-Formation of salt crystals within the rock.
-Burrowing by animals.
those are some factors I know
hope this helped you
Answer:
I think its might be 1 because the ionic numbers for CA is +2 and for P its +3
The answer is A. the solar ultraviolet ray breaks the molecule apart
