Less than 5%.
permafrost
70% or 80% of water covers the earths surface
about 30%
28 %
97%
Apart form the Oceans the earths surface is made of rocks.
I think because pluto is farther from the sun than earth the nitrogen is probally frozen so there is not as much and it is colder than the nitrogen found on earth
Wind and water and frozen water are the main contributors to the weathering and erosion of the surface of the Earth. Along with gravity, these agents wear down elevated surface features and fill in depressed surface features.
about one fourth
Water covers 71% of the Earth's surface
There is some indirect evidence of frozen water on the Moon, no one can be sure of how much exactly.
Wind and water and frozen water are the main contributors to the weathering and erosion of the surface of the Earth. Along with gravity, these agents wear down elevated surface features and fill in depressed surface features.