Primary succession starts with bare rock which is broken down by either lichen or moss to make soil while secondary succession starts with developed soil
C.
The force the wind exerts on the surface of the rock while it blows past it can cause it to erode into irregular shapes.
Explanation:
What happens during daytime is, oxygen that gets trapped between filaments of algae, moves them to the surface and during night as O2 is not produced, they slowly sink to lower depths, and you don't see them