Environmental ChemistryHard
Question
A dental disease characterised by mottling of teeth is due to presence of a certain chemical element in drinking water. Which is the element -
Options
A.Fluorine
B.Mercury
C.Boron
D.Chlorine
More Environmental Chemistry Questions
Which disease in children is caused by the intensive use of nitrate fertilizers -...World environment day is celebrated on −...Which of the following does not causes air pollution −...Which of the following types of pollution causes the out break of jaundice -...When PO4 and NO3 is more in the water of a lake it causes -...