Some chemical engineers, known as process engineers, specialize in a particular process, such as oxidation (a reaction of oxygen with chemicals to make other chemicals) or polymerization (making plastics and resins).
Quick Answer. Some of the major causes of air pollution include burning of fossil fuels, agricultural activities, exhaust from industries, vehicle fumes, mining operations and indoor pollutants. Air pollution has a negative impact on the environment and life in general.
Quick Answer. Air pollution comes from a wide range of sources, which are categorized into mobile, stationary, area and natural sources. Mobile sources include vehicles, trains and planes. Stationary sources include industries and oil refineries. Examples of area sources are cities and agricultural areas, while natural sources include volcanoes and wildfires.