Question

What are the sources of harmful gases and chemicals that pollute the atmosphere?

• A. Vehicles
• B. Power plants
• C. Oil refineries
• D. Industrial facilities

Answer 1

Answer: (A), (B), (C), (D)

The correct options are
A Vehicles
B Power plants
C Oil refineries
D Industrial facilities

There are three main types of air pollution sources:

• 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.