Healthy ecosystems are communities of living organisms, such as plants, animals, and microorganisms, interacting with their physical environment. These ecosystems provide essential services, including clean air and water, pollination of crops, and natural pest control. Biodiversity, or the variety of life within an ecosystem, is crucial for its resilience and ability to adapt to changes. In a healthy ecosystem, each species plays a specific role, contributing to the overall balance. For example, predators help control prey populations, while decomposers break down dead matter, returning nutrients to the soil. Protecting these ecosystems is vital for sustaining life on Earth.