About 20% of the deserts are covered by sand. Others are covered by soil or rock.
Approximately one third of the land surface of the world is desert.
About 20 percent of desert land is covered by sand.
the answer is that there is no exact amount because some goes and comes
about one fourth
About 33% of the earth's land surface is covered by deserts.
Roughly 75% of Earths Surface is covered by water. (including the Oceans, lakes and land Ice).
28 %
Approximately 71% of the Earth is covered by oceans.
About 1/3 (33%) of the land surface is covered by deserts.
between 15 and 20 percent
Deserts make up 33% of the Land's surface
Mostly 75 percent
About one third of the earth's land surface is covered by deserts.
Approximately 70% of earths surface is covered by the oceans.