Fresh Water water that has very little salt in it Coniferous forest a forest that contains mostly evergreens Desert an ecosystem found in areas that get very little rainfall Environment everything around a living thing Ecosystem living and nonliving things interacting in an environment Tropical rain forest a forest that grows in places that are hot and wet all year Coastal forest a forest that grows where it doesn’t get too warm or too cold and where there is a lot of rain Salt water water that has lots of salt in it Forest an area in which the main plants are trees Population a group of the same kind of living things that live in the same place at the same time Community all the populations that live in an ecosystem Deciduous forest a forest mostly made up of trees that drop their leaves each fall Habitat Provides a population with all its needs and includes living and nonliving things Grassland A large, flat area where tall grasses grow and there are very few trees