There is no single desert that covers the earth. There are about 28 major deserts that, combined, cover about 1/3 of the earth's land area.
About one third of the land surface of the earth is desert.
About 20% of the deserts are covered by sand. Others are covered by soil or rock.
about one fourth
205%
About one third of the land surface of the world is arid or semi-arid.
Approximately 30% of the Earth's surface is covered by land, the remaining 70% of the surface is covered by water.
33% of the land surface of earth is covered by deserts.
About 1/3 (33%) of the land surface is covered by deserts.
Roughly 75% of Earths Surface is covered by water. (including the Oceans, lakes and land Ice).
Deserts make up 33% of the Land's surface
Most of the earths surface is covered with water. There is land under that water though, below the surface.
50%