# The disease caused due to excess of fluoride

$(a)\;Minamita\qquad(b)\;Fluorosis\qquad(c)\;Paralysis\qquad(d)\;Lung\;cancer$

Fluorosis
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.
edited Nov 11