A more thorough explanation:

Pollution is when harmful substances contaminate the air, water, or earth. This can happen when people use cars, chemicals, or create too much garbage. Pollution can be dangerous to people and the environment.

For example, water pollution is when harmful substances get into the water. This can make people sick if they drink the water. The Federal Clean Water Act is a law that helps protect people from water pollution.

Other examples of pollution include air pollution from factories and cars, and soil pollution from chemicals and waste. These types of pollution can harm plants and animals, and even cause health problems for people who breathe in polluted air.

To help prevent pollution, there are laws and regulations that companies and individuals must follow. These laws aim to decrease pollution and protect the environment for future generations.