SSC General Science & Technology Sample Paper NCERT Sample Paper-1

  • question_answer
    The deficiency of vitamin A causes:

    A)  Hair to fall       

    B)  dysentery

    C)  Night blindness

    D)  weakness

    Correct Answer: C

    Solution :

    [c] Vitamin A deficiency is the leading cause of preventable childhood blindness and is critical to achieving Millennium Development Goal 4 to reduce child mortality. Approximately 250,000 to 500,000 malnourished children in the developing world go blind each year from a deficiency of vitamin A, approximately half of whom die within a year of becoming blind. The prevalence of night blindness due to Vitamin A deficiency is also high among pregnant women in many developing countries. Vitamin A deficiency also contributes to maternal mortality and other poor outcomes in pregnancy and lactation.

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