The main function of soil in an ecosystem is to provide a medium for plant growth and serve as a crucial resource for nutrient cycling. Soil contains essential minerals, organic matter, and microorganisms that support plant health, allowing for the uptake of water and nutrients needed for growth. Additionally, soil influences water retention, affects local hydrology, and serves as a habitat for various organisms, including insects and fungi. Healthy soil ecosystems contribute to overall environmental stability, biodiversity, and the sustainability of food production systems.