About 20 percent of the land in deserts is covered by sand.
Simplified, 100% would be. Sand is ground rock.
Sand, sand, and desert sand
A hill of sand in a desert is normally referred to as a dune
The Arabian Desert is the largest sand desert.
The largest sand desert is the Arabian Desert in Asia.
Sand is on the desert.
Sand is on the desert.
Desert sand originates from the erosion of rocks and minerals in desert regions.
A sand desert ia call an erg.
SAND
67% of the Sonoran Desert is covered by sand
sand+sand