Question

Alina was asked to list the causes of air pollution. She made the following list:
A. Burning of Coal
B. Burning of Liquefied Petroleum Gas
C. Burning of Compressed Natural Gas
D. Exhaust from factories and industries
Which are the correct causes in this list?

• A. Only A
• B. A and B
• C. A, B and C
• D. All of the above

Answer 1

The correct option is D All of the above

All the four cases cause air pollution. When fuels are burned, pollutants are formed and released into the air. This combustion of fuels increases the concentration of carbon dioxide in the air. This is thought to cause global warming. Exhaust from factories and industries release pollutants into the atmosphere and can cause airborne diseases.