Teaching BPSC बिहार प्राथमिक (1 to 5) शिक्षक भर्ती 4.0 Mock Test Biology Health and Disease Diseases
Which of the following parts of the human body is effected the most due to the fluoride pollution?
1
Liver
2
Eyes
3
Teeth
4
More than one of the above
5
None of the above