A forest is an area of land with many trees. Many animals need forests to live and survive. Forests are very important and grow all over the world. Many forests are being cut down for houses to be built because of overpopulation. This cutting down of forests is called deforestation and it is causing damage to the natural habitat of animals. Even roads have been built for the peoples to pass though the forest to reach their destination. People have gotten rid of forest to build towns cities, farms, factories and other things that we will use.
A forest, also referred to as a wood or the woods, is an area with a high density of trees. As with cities, depending on various cultural definitions, what is considered a forest may vary significantly in size and have different classifications according to how and of what the forest is composed.[1] A forest is usually an area filled with trees but any tall densely packed area of vegetation may be considered a forest, even underwater vegetation such as kelp forests, or non-vegetation such as fungi,[2] and bacteria. Tree forests cover approximately 9.4 percent of the Earth's surface (or 30 percent of total land area), though they once covered much more (about 50 percent of total land area). They function as habitats for organisms,hydrologic flow modulators, and soil conservers, constituting one of the most important aspects of the biosphere.
A typical tree forest is composed of the overstory (canopy or upper tree layer) and the un derstory. The understory is further subdivided into the shrub layer, herb layer, and also the moss layer and soil microbes. In some complex forests, there is also a well-defined lower tree layer. Forests are central to all human life because they provide a diverse range of resources: they store carbon, aid in regulating the planetary climate, purify water and mitigate natural hazards such as floods. Forests also contain roughly 90 percent of the world's terrestrial biodiversity.[3]