Multiple choice

Which one of the following diseases is caused by fluoride in drinking water ?

  1. Lung cancer

  2. Liver disorder

  3. Knock knee syndrome

  4. Cardiomyopathy
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Excess fluoride in drinking water leads to fluorosis, which adversely affects bones and joints. A classic manifestation of skeletal fluorosis is genu valgum, commonly referred to as knock knee syndrome.

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