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List four benefits to human life by eliminating the use of CFCs.              (2)

 

Explanation:

(i) Delay in aging of skin

(ii) Prevent damage to skin cells

(iii) Prevent skin cancer

(iv) Prevent snow blindness / inflammation of cornea

(v) Prevent cataract

(vi) Prevents ozone depletion

(vii) Prevents global warming

(viii) Reduces greenhouse effect

(ix) Reduces odd climatic changes or El Nino effect  

                                                    (Any Four ) = ½ × 4                        (2) 

 

 

 

 

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