All types of pollution can be harmful, but air pollution is often considered the most dangerous. Air pollution can cause a wide range of health problems, including respiratory illnesses, heart disease, and even cancer. It occurs when harmful substances, such as chemicals, particulate matter, and gases, are released into the air by human activities like burning fossil fuels and industrial processes. These substances can be breathed in and absorbed by the body, leading to long-term damage to our health and the environment. Additionally, air pollution can contribute to climate change, which poses a threat to the health and wellbeing of our planet and all living creatures on it.