question_answer

CFCs are responsible for

A)  ozone layer depletion  

B)  global warming

C)  acid rain                                             

D)  None of the above

Correct Answer: A

Solution :

                 CFCs (Chlorofluoro carbons) are mainly responsible for ozone layer depletion. CFCs are used as cooling materials in refrigerators and air conditioners, propel aerosol sprays etc, UV ray breaks CFC molecules and releases chlorine molecules, which reduce the ozone content in the atmosphere. One Cl molecule is sufficient to destroy a lac of ozone molecules.