What is the term used to identify the top layer of earth's surface that is suitable for plant growth?

The term that denotes the top layer of the earth's surface suitable for plant growth is soil. Soil is a complex mixture of minerals, organic matter, air, water, and living organisms, which together create a dynamic environment that supports plant life.

It serves as a crucial resource for agriculture by providing nutrients, anchoring plant roots, and retaining moisture, all of which are essential for plant health and productivity. The formation of soil involves processes like weathering of rocks and the decomposition of organic matter, which contribute to its fertility and structure, making it distinctly different from the other layers of the Earth's surface.

Understanding soil's significance allows us to appreciate the vital role it plays in ecosystems and agriculture, driving the need for sustainable practices to maintain its quality and prevent degradation.