Answer:
The uppermost layer of the Earth's crust is called the soil. It covers the entire Earth and is composed of a mixture of organic matter, minerals, water, and air. The composition and properties of the soil vary depending on the location, climate, and vegetation. Soil plays an essential role in supporting plant life and providing nutrients for crops to grow. It is also critical for water retention and filtration, erosion control, and carbon sequestration. Understanding the properties of soil is important for agricultural, environmental, and industrial practices.