What do facrories and cars pollue the air?

Factories and cars pollute the air primarily by emitting harmful pollutants such as carbon monoxide, nitrogen oxides, sulfur dioxide, and particulate matter. These emissions result from burning fossil fuels, industrial processes, and vehicle exhaust, contributing to air quality deterioration. The pollutants can lead to health issues, such as respiratory problems, and contribute to environmental concerns like acid rain and climate change. Reducing emissions from these sources is essential for improving air quality and public health.