What are the main components of soil?

The selected answer identifies the main components of soil accurately. Soil is primarily made up of minerals, which provide essential nutrients to plants, and organic matter, which consists of decomposed materials from plants and animals that enrich the soil. Water is vital for various soil processes and supports plant growth, while air in the soil spaces allows for the respiration of roots and soil organisms.

This combination of minerals, organic matter, water, and air creates a balanced environment that supports life and various biological activities necessary for soil health and fertility. Understanding these components is crucial for appreciating how soil functions as a natural resource that supports ecosystems and agriculture.