Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test General Science Biology Human body
“Blue Baby Syndrome” is caused by which of the following salts, which are present in water?
1
Carbonates
2
Nitrates
3
Chlorides
4
More than one of the above
5
None of the above