NURSING ANM AND GNM

Detailed explanation-1: -mobile sources – such as cars, buses, planes, trucks, and trains. stationary sources – such as power plants, oil refineries, industrial facilities, and factories. area sources – such as agricultural areas, cities, and wood burning fireplaces. natural sources – such as wind-blown dust, wildfires, and volcanoes.

Detailed explanation-2: -It is called smog. The word “smog” comes from combining the words “smoke” and “fog.” Large cities in poor and developing nations tend to have more air pollution than cities in developed nations.