Soil organisms are living creatures that inhabit the soil, playing a crucial role in maintaining soil health and fertility. These organisms include bacteria, fungi, earthworms, and insects, each contributing to the breakdown of organic matter and nutrient cycling. They help decompose dead plants and animals, turning them into nutrients that plants can absorb. In addition to decomposition, soil organisms improve soil structure and aeration. For example, earthworms create tunnels that allow air and water to penetrate deeper into the soil. This activity enhances the growth of plants and supports a diverse ecosystem, making soil organisms essential for sustainable agriculture and environmental health.