Forest are large areas of land that are dominated by trees. Other types of vegetation, such as shrubs and flowers, also grow in forests. Forests cover about one-third of the Earth.
There are several types of forests. Tropical rainforests grow near the equator in places that are wet and hot. There is never a dry season in these parts of the world. Besides trees, these forests are abundant in wildflowers, mosses, ferns and vines. The heavy rainfall these forests receive leaches the soil of nutrients, and the soil is considered poor.
By contrast, the soil of temperate deciduous forests is rich in nutrients. These forests experience four seasons. They are called deciduous forests because they are dominated by trees like the maple and oak.