What is the role of mosses in nature; human life?

Mosses play an important role in nature. They are among the first to inhabit mountain cliffs and other places, forming the soil on which other plants can later grow. Peat bogs accumulate large reserves of water. Gradually releasing it into streams and rivers, the swamps do not allow them to dry out. Bogs are a nesting place for many birds. Peat is widely used by humans primarily as fuel, and also in agriculture as fertilizer. In addition, various resins, waxes and other useful substances are obtained from it.