Environmental audits are like a checkup a doctor gives you to see if you are healthy. But instead of checking your body, environmental audits check how healthy the environment is.
Just like how you need to eat healthy food, exercise and sleep enough to stay healthy, companies and organizations also need to follow rules and guidelines to keep the environment healthy. The audit checks if these companies and organizations are following the rules or not.
For example, just like how you shouldn't litter or make too much noise that disturbs others, companies shouldn't pollute water or air, or make too much noise that disturbs animals. If there is any pollution or damage happening, the audit helps identify it so that corrective measures can be taken.
Environmental audits help keep our planet healthy, just like how your checkup helps keep you healthy.