Increase of BOD in water leads to

Question

Increase of BOD in water leads to (A) increase in the dissolved O2 concentration (B) decrease in the dissolved O2 concentration (C) maintenance of dissolved O2 concentration at the same level (D) no effect on dissolved O2 concentration

Tardigrade Admin · Accepted Answer

Biochemical Oxygen Demand (BOD) is the oxygen in milligrams required for five days in one litre of water at 20°C for the micro-organisms to metabolise organic waste. Increase of BOD in water leads to decrease in the dissolved oxygen concentration.

Q. Increase of BOD in water leads to

increase in the dissolved $O_{2}$ concentration

decrease in the dissolved $O_{2}$ concentration

maintenance of dissolved $O_{2}$ concentration at the same level

no effect on dissolved $O_{2}$ concentration

Biochemical Oxygen Demand (BOD) is the oxygen in milligrams required for five days in one litre of water at 20°C for the micro-organisms to metabolise organic waste. Increase of BOD in water leads to decrease in the dissolved oxygen concentration.

Q. Increase of BOD in water leads to

increase in the dissolved O2​ concentration

decrease in the dissolved O2​ concentration

maintenance of dissolved O2​ concentration at the same level

no effect on dissolved O2​ concentration

Biochemical Oxygen Demand (BOD) is the oxygen in milligrams required for five days in one litre of water at 20°C for the micro-organisms to metabolise organic waste. Increase of BOD in water leads to decrease in the dissolved oxygen concentration.

increase in the dissolved $O_{2}$ concentration

decrease in the dissolved $O_{2}$ concentration

maintenance of dissolved $O_{2}$ concentration at the same level

no effect on dissolved $O_{2}$ concentration