Air pollution is the contamination of air, there is a higher than normal levels. Long enough to cause harm to humans, animals, plants or other assets may occur naturally, such as dust storms. Volcanic eruptions, earthquakes, forest fires, natural gas, air pollution occurs. By nature is very little danger to humans. The origin is far and amounts to the condition. Environment of humans and animals is minimal. Cases caused by human activities, including pollution from the exhaust. Of industrial production from agricultural activities by evaporation. Some of the gas Caused by garbage and waste.
การแปล กรุณารอสักครู่..