Biochemical oxygen demand (BOD) value can be a measure of water pollution caused by the organic matter. Which of the following statements is correct?

Question

Biochemical oxygen demand (BOD) value can be a measure of water pollution caused by the organic matter. Which of the following statements is correct? (A) Polluted water has B O D value higher than 10 ppm (B) Aerobic bacteria decreases the BOD value (C) Anaerobic bacteria increases the BOD value (D) Clean water has B O D value higher than 10 ppm

Tardigrade Admin · Accepted Answer

Clean water has BOD value less than 5 ppm. Polluted water has BOD value higher than 10 ppm.

Q. Biochemical oxygen demand $(BO D)$ value can be a measure of water pollution caused by the organic matter. Which of the following statements is correct?

Polluted water has B O D value higher than 10 ppm

Aerobic bacteria decreases the BOD value

Anaerobic bacteria increases the BOD value

Clean water has B O D value higher than 10 ppm

Clean water has $BO D$ value less than $5 pp m$ . Polluted water has $BO D$ value higher than $10 pp m$ .

Q. Biochemical oxygen demand (BOD) value can be a measure of water pollution caused by the organic matter. Which of the following statements is correct?