nariahjohnson02 nariahjohnson02
  • 30-11-2022
  • Biology
contestada

Question 2
Biochemical oxygen demand is a measure of the
amount of oxygen used by organisms in a water sample.
amount of undissolved solid matter present in a water sample.
amount of nitrogen in a water sample.
number of bacteria present in a water sample.
amount of oxygen present in a water sample.

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help me on this question please?
x+ 0.0825×=216.50 A.) x=2.00 B.) x=20.0 C.) x=200 D.) x=2000
Need help with these ?!!! Please