1.

Which statement is correct regarding CFC's? I. They are 1000 times more heat absorbent than carbon dioxide II. They reach the atmosphere from refrigeration & air conditioning, aerosol sprays, and foam packaging industry. III. They are responsible for 30% of greenhouse effect

A.  I & II                           
B.  II &III
C.  Only III           
D.  All the above
Answer» B.  II &III


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