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

1. Air pollution can cause health problem directly to any organism include human, animals, and plants. The pollutant can increase the risk of infection, asthma or COPD in human.
2. If air pollutants are too much, they can be blocking the sun making the plant is harder to get sunlight and can't do photosynthesis. It will make the level of oxygen decreased and amount of carbon dioxide increase.
3. Air pollutant also be able to cause climate changes and make global warming which will cause the temperature of earth increase, melting the ice and increasing the water level.