Which of the following statements is incorrect regarding the treatment of waste water?
A. Proper treatment of domestic and municipal waste water which is rich in organic matter and pathogens material also helps to conserve water.
B. Treatment ensures the removal of pollutants but not germs and toxic elements.
C. Growing algae or floating masses of water hyacinth also helps in cleaning the water polluted by absorbing phosphates, nitrates and other nutrients.
D. None of the above
Answer:B
Which of the following statements is incorrect regarding the treatment of waste water?
A. Proper treatment of domestic and municipal waste water which is rich in organic matter and pathogens material also helps to conserve water. B. Treatment ensures the removal of pollutants but not germs and toxic elements. C. Growing algae or floating masses of water hyacinth also helps in cleaning the water polluted by absorbing phosphates, nitrates and other nutrients. D. None of the above
Explanation: Removal of pollutants to transform polluted water into usable form: