Referring to weather conditions are additives are higher than the normal level for long enough to cause harm to humans, animals, plants, or property may occur naturally. Such as the dust from the storm a volcano eruption.Fire gas air occurs naturally harmful to humans, very little because the source origin is far and quantity into the environment of human and animals are less cases caused by human activities, including pollution from.The exhaust of cars from the industrial production from agricultural activities from the evaporation of some kind, which is caused by the waste gas and waste.
การแปล กรุณารอสักครู่..