How does solid rock become soil?

A.
It splits apart and combines with plant roots.

B.
It falls apart and combines with particles in the air.

C.
It breaks down and changes into liquid.

D.
It breaks down and combines with water, air, and organic matter.

Question

How does solid rock become soil?	
 
 A.
It splits apart and combines with plant roots.
 
 B.
It falls apart and combines with particles in the air.
 
 C.
It breaks down and changes into liquid.
 
 D.
It breaks down and combines with water, air, and organic matter.

nurali · Answer

i think It breaks down and combines with water, air, and organic matter.

ashleyisakitty · Answer

Erosion, that means it would be D.  Water, air and organic matter (i.e. bigger rocks) break it down.

anonymous · Answer

d