1. Soil Horizon: The layer of soil parallel to the soil surface is known as soil horizon. Depending upon the texture and composition of the soil, it is categorized as O, A, B and C. Horizon O consists of organic matter such as remains of plants. Horizon A contains plants’ roots, fungi, bacteria and chemically stable minerals. Horizon B is the accumulation of soluble minerals. Horizon C contains bed rock, in other words rock fragments.
2. Mechanical Weathering: Mechanical withering occurs as a result of physical processes that break down rocks and minerals into smaller pieces that hold back ...
