Chlorofluorocarbons are air polluting agents which are produced by

Options

A. diesel trucks
B. jet planes
C. rice fields
D. cellphones.

Answer

B

Explanation

Chlorofluorocarbons are the chemicals whichare used as refrigerants, propellants and solid plastic foams. The chemicals are released as aerosol by jets flying at high altitudes. Along with nitrogen oxides, chlorofluorocarbons react with ozone of ozonosphere and deplete the same.