Deficiency of fluorine in drinking water caused

Assertion: The deficiency of fluoride in drinking water cause disease such as tooth decay etc. Reason: The F^(-) ions make the enamel on teeth much harder by converting hydroxyapatite, the enamal on the surface of the teeth, into much harder fluorapatite.

Deficiency of fluoride ion in drinking water causes

Deficiency of fluoride ion in drinking water causes

Excess fluorine in drinking water causes

Statement-1: Deficiency of fluoride in drinking water is harmful to human being. and Statement-2: Fluoride concentration more than 10 ppm causes harmful effect to bones and teeth.

Statement-1: Deficiency of fluoride in drinking water is harmful to human being. and Statement-2: Fluoride concentration more than 10 ppm causes harful effect to bones and teeth.

Deficiency of (F^(-)) in drinking water causes tooth decay. Its International Standard limit makes the enamal on tooth much harder by comverting hydroxyapatite into much harder

Excess of fluoride in drinking water causes………………