How soil is made ?

Soil formation is slow, time taking, and takes millions of year to form 1-5 cm layer of soil. The process is ultimately called weathering. 1. The process by which rocks are transformed into soil is called weathering. 2. The weathering of rocks converts them into smaller and smaller particles which eventually form the soil. 3. The various element of nature such as rivers, rainwater, winds and continuous changes in weather cause weathering. 4. Rodents like rats and bandicoots make burrows in the soil. This biological process goes on in the ground continuously and causes weathering.