Air pollution harms humans. It causes health problems such as burning eyes and nose. There is also ore serious health problems that it can cause some chemicals can cause cancer, birth defects, brain, and nerve damage. Air pollution damages the ozone layer that protects us from the harmful ultraviolet rays from the sun. Air pollution also effects plants it interferes with photosynthesis so the plants can not properly make their own food. It affects the fruits the plants grow and make them smaller and less nutritious.