Which of the following is a natural source of air pollution?
Automobiles
Power plants
Volcanoes
Industrial factories
Air pollution refers to the presence of harmful substances in the air we breathe, which can have detrimental effects on human health and the environment. There are both natural and human-made sources of air pollution. Natural sources include events like volcanic eruptions, wildfires, and dust storms. Volcanoes are known to emit sulfur dioxide, particulate matter, and other pollutants during their eruptions, which can impact the air quality of surrounding areas. In contrast, human-made sources of air pollution include activities like transportation, industrial processes, and power generation. These activities release pollutants such as carbon monoxide, nitrogen oxides, and particulate matter into the atmosphere. The history of air pollution dates back to ancient times when people started using fire for cooking and heating, and its effects on human health were noticed. Over time, air pollution has become a significant environmental concern, leading to the development of air quality regulations and efforts to reduce emissions.