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Night blindness is caused by lack of which vitamin?

  • A.Vitamin a
  • B.Vitamin b
  • C.Vitamin c
  • D.Vitamin d

Answer: A

Night blindness is caused by a lack of vitamin A.

Vitamin A is needed to make rhodopsin, the pigment of the rod cells that gives vision in dim light. Prolonged deficiency dries the cornea and can end in blindness; it remains a major cause of childhood blindness worldwide.

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