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21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
An Intiative by Sri Chaitanya
a
pH of drinking water should be between 5.5-9.5
b
Oxides of sulphur, nitrogen and carbon are the most wide spread air pollutant
c
Clean water would have a BOD value of less than 5 ppm
d
Concentration of DO below 6 ppm is good for the growth of fish
answer is C.
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