Answer:

1. Health effects: Air pollution can cause respiratory diseases such as asthma, chronic obstructive pulmonary disease (COPD), and lung cancer. It can also increase the risk of heart disease, stroke, and other illnesses.

2. Environmental damage: Air pollution can harm ecosystems, including plants, animals, and bodies of water. It can also contribute to climate change and global warming.

3. Reduced visibility: Air pollution can reduce visibility, making it difficult to see over long distances. This can be dangerous for drivers and can also impact tourism and outdoor activities.

4. Economic costs: Air pollution can have significant economic costs, including healthcare costs for treating pollution-related illnesses, reduced productivity due to sickness, and damage to crops and other resources.

5. Acid rain: Air pollution can cause acid rain, which can harm plants, animals, and bodies of water. Acid rain can also damage buildings and infrastructure.

6. Ozone depletion: Air pollution can contribute to the depletion of the ozone layer, which protects the Earth from harmful ultraviolet radiation.

7. Smog: Air pollution can lead to the formation of smog, a type of air pollution that can cause respiratory problems and other health issues.