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The disease caused due to excess of fluoride


1 Answer

Fluorosis is usually caused by a high level of fluoride in drinking water. High fluoride levels in water are usually found in certain places; these places are endemic for fluorosis. The earth’s crust has a high content of fluoride and so does the bore well water in endemic areas which is often used as a source of water.
Hence (b) is the correct answer.
answered Jan 21, 2014 by sreemathi.v
edited Nov 11 by sharmaaparna1