Explain three ways on how air pollution harms people in areas where it is prevalent

1. diseases - when people are constantly being exposed to air pollution, it may cause them various lung diseases such as asthma and other respiratory problems
2. global warming - when air is polluted, it also affects the global warming as our planet is constantly getting warmer
3. plants are dying - with no enough fresh air to breathe, humans cannot release enough carbon dioxide which plants need to create oxygen 

This would be a example of a "i want to be single person"