Question

Exposure to sunlight helps a person improve his health because

a.

the infrared light kills bacteria in the body

b.

resistance power increases

c.

the pigment cells in the skin get stimulated and produce a healthy tan

d.

the ultraviolet rays convert skin oil into Vitamin D

Answer: (d).the ultraviolet rays convert skin oil into Vitamin D

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Q. Exposure to sunlight helps a person improve his health because

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