Question

Identify the controlling methods of air pollution.

• A. Checking the emission of smoke from motor vehicles
• B. Checking or controlling the emission of smoke from factories
• C. All of the above
• D. Stop Deforestation

Answer 1

The correct option is C All of the above

Checking the emission of smoke from motor vehicles is important because some harmful gases are released into air by vehicles.
Checking or controlling the emission of smoke from factories helps decrease harmful gases released into air by the factories.
Deforestation creates more $C{O}_2$ gas.
So all the activities are air pollution controlling methods.