Question:
Knock knee syndrome occurs due to the pollution of
Knock knee syndrome occurs due to the pollution of
Updated On: Jun 14, 2022
- nitrates
- phosphates
- fluorides
- heavy metals
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The Correct Option is C
Solution and Explanation
Knock knee syndrome occurs due to the pollution of fluorides. The disease is characterised by stiffness and hardness of joints and bones. More than $13$ states of India have high concentration of fluoride (more than $1.5 \,ppm$) in ground drinking water.
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