Soil is the most important renewable natural resource it is the medium of plant growth and supports different types of living organisms in the earth is soil is a living system it takes millions of year has to form soil up to a few centimetre in death relief parents record Bedrock climate vegetation and other form of life and time are important factors of formation of soil various forces of nature suggest change in temperature action of running water wind and leisure activities are decomposers exactra contribute the formation of soil Chemicals and organic changes which takes place in soil are equally important so I also concept of organic or humus and inorganic material.