Solution:
Both the assertion and reason are true, but the reason is not the correct explanation of the assertion.Soil is the most important renewable natural resource because it is the medium of plant growth and supports different types of living organisms on earth. It serves as a medium for plant growth and sustains various earth's life forms. It is a biological system, the soil. Up to a few centimetres deep, soil formation takes millions of years. Soil development is influenced by several elements, including relief, parent rock or bedrock, climate, and flora. The creation of soil is influenced by some natural forces, including temperature changes, the flow of water, wind, and glaciers, as well as the activity of decomposers.