Okay, kiddo, let me explain. Pollution means when people make things that are bad for the environment. For example, when we use cars that release smoke, or factories that create a lot of smoke, garbage that we throw in the sea, or plastic that we don't recycle. This can make the air, water, and land dirty and dangerous for living things.
When we pollute so much, it can cause the death of animals and plants, and even humans. If we breathe in polluted air or drink polluted water, it can make us very sick. Additionally, pollutants can stay in our bodies or can make the food we eat unsafe. It can also cause things like climate change, which can make the temperatures rise so high that living things cannot survive.
So, pollution is something we need to take seriously, so that we can keep the environment clean, and keep ourselves and other living things safe and healthy.