It is food for green plants is the least accurate.
I'm pretty sure it's deposition because the sediments in the water(soil) are building up on the rock.
I believe the answer you're looking for is:
Condensation- If the air cools, then water vapor molecules slow down and some can not remain a vapor. They cluster in the air to form tiny liquid droplets. This is called condensation. In clouds, the liquid droplets formed by condensation are small and light enough that they stay in the air.
<em>hope this helps! :)</em>
it often supply energy and other nutrients and fiber that the body needs.