Erosion
30%
The wearing away of all surface soil by wind and water is called erosion.
it is the water cycle
It can change
water
Water
it is water cycle
70% or 80% of water covers the earths surface
3/4 of the earth's surface is water.
Indian Ocean covers 20% of water on the earths surface.
69%
about 30%
the sun
Water.
30%
the water cycle
Ground water.