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Question

Knock-Knee syndrome results due to pollution of

A
Heavy metals
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B
Fluorides
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C
Nitrates
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D
Phosphates
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Solution

The correct option is B Fluorides
Knock-Knee is also known as the Genu Valgum is a condition of knees angle in when the legs are straightened. A person with Knock-Knee syndrome can not able to touch their feet each other while both legs are straightened simultaneously. Knock-knee is a result of a high intake of raw metals through the water like silica and fluoride. In taking polluted groundwater may result in Knock-Knee syndrome. Excess of fluorides in drinking water can cause neuromuscular disorders, teeth deformity, hardening of bones, painful joints & outward bending of legs from knees (Knock knee syndrome).
So the correct answer is ' Fluorides'.

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