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Question 11Excessive exposure of human beings to UV-rays results in(i) Damage to immune system(ii) Damage to lungs(iii) Skin cancer(iv) Peptic ulcers(a) (i) and (ii)(b) (ii) and (iv)(c) (i) and (iii)(d) (iii) and (iv) |
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Answer» Question 11 |
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