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Sriguhan Rajagopalan
's Polls
GK
Exposure to sunlight helps a person improve his health because
the infrared light kills bacteria in the body
0 votes (0%)
the infrared light kills bacteria in the body
resistance power increases
0 votes (0%)
resistance power increases
the ultraviolet rays convert skin oil into Vitamin D
4 votes (100%)
the ultraviolet rays convert skin oil into Vitamin D
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4 votes
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