Excessive exposure of humans to UV-rays results in :

(i) damage to immune system
(ii) damager to lungs
(iii) skin cancer
(iv) peptic ulcers
(a) (i) and (ii)
(b) (ii) and (iv)
(c) (iii) and (iv)
(d) (i),  (ii) and (iii)

Anurag Mishra Professor Asked on 18th January 2016 in Health & Fitness.
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    Answer: (c) (iii) and (iv) 

    Anurag Mishra Professor Answered on 21st January 2016.
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