sunlight does not break down rocks
Mechanical wethering and Chemical wethering are the two major process that break down the rocks.
Soil.
Sedimentation
sand or dirt
rocks
yes
Erosion is the main force that acts on rocks to break them down into sand. Water getting into cracks, freezing and expanding also helps to break down rocks.
the process is called weathering when the rocks break down
It breaks down the rocks
soil
Mechanical wethering and Chemical wethering are the two major process that break down the rocks.
Water can erode rocks. This is particularly true if it moves down a steeply inclined area and there is a lot of it. Also consider ocean waves that break ashore. It can also get into cracks and crevices in rock and freeze, forcing the rock to crack apart.
Weathering
none
Yes
Waves break down rocks through constant force being exerted against them. Over time, it very slowly wears away and smooths the surface.
sedimentary rocks