Deserts are some of the harshest and most extreme environments on Earth. They are characterized by extreme temperatures, lack of water, and limited vegetation. Deserts cover about one-third of the Earth’s land surface and are found on every continent.

The most common type of desert is the hot desert, which is characterized by extremely hot temperatures during the day and cold temperatures at night. Hot deserts are found in the subtropical regions of the world, such as the Sahara