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Question

Fluoride pollution initially affects

A
Kidneys
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B
Teeth
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C
Heart
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D
Brain
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Solution

The correct option is C Teeth
Fluorides are given out during refining of minerals. Fluorides cause fluorosis. In animals, fluorides bring about abnormal calcification of bones and teeth (making them weak), frequent diarrhoea and swelling of knee bones. In humans,there are mottling of teeth, week bones, boat-shaped posture, knocking knees, gastrointestinal and neuromuscular disorders.

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