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Question
The excessive exposure of humans to ultraviolet rays results in:
- damage to immune system
- damage to lungs
- skin cancer
- peptic ulcers
Options
(i) and (ii)
(ii) and (iv)
(i) and (iii)
(iii) and (iv)
MCQ
Fill in the Blanks
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Solution
(i) and (iii)
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