Soil is part of the earth's crust composed of mineral and organic materials. Land is very vital role for all life on earth because the soil supports plant life by providing nutrients and water as well as the support of the root. Soil structure, hollow-cavity is also a good place for the roots to breathe and grow. Land is also a habitat for various living microorganisms.
Soil derived from weathering of rocks with the help of the organism. This process formation knows as "pedogenesis". The process of this unique form of land as a natural body consisting of layers referred to as the horizon or the ground. Each horizon tells about the origin and processes of physics, chemistry, and biology that has traversed the body of the land.
