Concept:Sedimentary rocks form from the breakdown, transport, deposition, and re-cementation of older rocks.
Explanation:Existing rocks are broken into fragments by weathering and erosion.
These fragments are carried by agents like wind and water.
They are then deposited in layers over time.
Pressure and mineral cements bind these layers together.
This process produces sedimentary rocks.
Thus, the correct description is breaking, deposition, and re-cementation of pre-existing rocks.
Answer:D. rocks formed from breaking deposition and re-cementation of pre-existing rocks