AP BIOLOGY

ECOLOGY

HUMANS AND THE BIOSPHERE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of these sets of three items produce CFCs
A
cars, factories, and cardboard
B
spray cans, cardboard, insulation
C
spray cans, refrigerant, cardboard
D
spray cans, refrigerant, insulation
Explanation: 

Detailed explanation-1: -CFCs and HCFCs are usually produced by halogen exchange starting from chlorinated methanes and ethanes. The brominated derivatives are generated by free-radical reactions of the chlorofluorocarbons, replacing C-H bonds with C-Br bonds. The most common CFCs are small molecules containing only one or two carbon atoms.

Detailed explanation-2: -Refrigerators, air conditioners, different types of sprays, fire extinguishers, and paints released chlorofluorocarbons in the air. And this emission contributed to the depletion of the Ozone layer.

There is 1 question to complete.