About one third of the land surface of the earth is desert.
50%
30%
About 10.4% of the world's land surface (approximately 6,020,000 square miles (15,600,000 square kilometers))is glaciated (is covered with frozen ice).
If by land mass you mean the surface, then 99% is habitable.
Approximately 70% of the Earth's surface is covered by Water. That leaves 30% for Land.
about one fourth
Approximately 30% of the Earth's surface is covered by land, the remaining 70% of the surface is covered by water.
Roughly 75% of Earths Surface is covered by water. (including the Oceans, lakes and land Ice).
50%
28 %
About 20% of the deserts are covered by sand. Others are covered by soil or rock.
Approximately 71% of the Earth is covered by oceans.
Approximately 70% of earths surface is covered by the oceans.
30%
About 1/3 (33%) of the land surface is covered by deserts.
about 70%
Warm, shallow seas covered much of Earth's surface during early Paleozoic time.