Air pollution is the presence of harmful substances in the air we breathe. These substances can come from various sources, such as cars, factories, and wildfires. When these pollutants mix with the air, they can cause health problems for people, animals, and plants. Breathing in polluted air can lead to issues like asthma, lung disease, and even heart problems. To combat air pollution, many countries are taking steps to reduce emissions and promote cleaner energy sources. This includes using electric vehicles, improving public transportation, and encouraging the use of renewable energy like solar and wind power. By working together, we can help create a healthier environment for everyone.