Profile of Soil on the Earth

A soil profile typically consists of three to five different layers, each with a distinct set of characteristics. A letter system is used to label these layers, known as horizons. The A horizon is the uppermost layer, followed by the B horizon, and the C horizon is the final layer. The O and R horizons may also be present in certain soils.....Read more[https://iasnext.com/profile-of-soil-on-the-earth-physical-geography-upsc/]