A sample of pond water containing 20mg of organic matter requires 16mg of dissolvedoxygen. Pond water contains 10mg of organicmatter per 2 litres. It's BOD is1) 4000ppm2) 400ppm3) 4 ppm4) 40ppmguys plz ans this with clarity solution

A sample of pond water containing 20mg of organic matter requires 16

1.	A sample of pond water containing 20mg of organic matter requires 16mg of dissolvedoxygen. Pond water contains 10mg of organicmatter per 2 litres. It's BOD is1) 4000ppm2) 400ppm3) 4 ppm4) 40ppmguys plz ans this with clarity solution
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