As population and size of a settlement in a forest increases, land is often cleared of the trees and natural vegetation. Grasslands are areas where grass is the major natural vegetation. A grassland is present in places where there is not enough rain to form a forest, but more than enough to form a desert. Most of the major grasslands are found in the interior parts of continents. The rich soil of grasslands makes it useful for pastures and for growing crops.
Grasslands provide habitat for various species of animal life.
During dry season fires can destroy large sections of grasslands. A desert is an area where little rain falls and few kinds of plants grow. Deserts are made of sand, bedrock, gravel, boulders, and soil. When the wind blows, sand piles up, and dunes are formed. Deserts can take the form of flat land, mesas, and mountains.