Did you know that about 30% of the Earth’s land is made up of desert?
A desert is a landscape or region that receives very little rain throughout the year (ten inches or less). Close to one third of the Earth’s surface is desert regions. There are four different types of deserts based upon their geographic situation: 1) polar deserts, 2) subtropical deserts, 3) cold winter deserts, and 4) cool coastal deserts. The largest non-polar desert is the Sahara Desert, a subtropical desert in northern Africa. It covers a surface area of about 3.5 million square miles.