
An Aquifer layer is most likely made up of cracked rocks.
Answer:
density of the sediment
size of the sediment
velocity of the agent of erosion
Explanation:
Merchandising. That is, if that is one of your answer choices. Chances are, they won't be selling the reef any time soon.
Rain allows water and nutrients to spread in different areas. Wind allows seeds and leaves to fall into the soil and grow new wildlife.