the greater BOD of waste water

Find the odd sentence out. (i) Biogas primarily consists of methane with CO_(2) and hydrogen (ii) the greater the BOD of waste water the more its polluting potential (iii) World biofuel day is observed on 10th August (iv) Cyclosporin A is obtained from Trichoderma polysporum.

Assertion: The greater the BOD of waste water, less is its polluting potential. Reason: The effuent from the primary treatment plant is generally released into natural water bodies like rivers and streams.

Read the following five statements (A to E) and select the option with all correct statements: The greater the BOD of waste water, more is its polluting potential. (B). Statins produced by the yeast Trichoderma polysporum act as blood -cholesterol lowering agents. (C) Baculoviruses are pathohens that attack insects and other arthropods. (D) The majority of baculoviruses used as biological control agents are in the genus Nucleopolyhedrovirus. (E) Treatment of waste water is done by the autotrophic microbes naturally present in the sewage.

Assertion: The Biological Oxygen Demand (BOD) is high in raw sewage. Reason: The greater the BOD in waste water, the lesser is its polluting potential.

After the reductiof BOD of waste water, the bacterial flocs are allowed to sediment. Theis semiment is called

Which of the following is True/false The lower the BOD of waste water more is its polluting potential

Which of the following is True/false The lower the BOD of waste water more is its polluting potential