Secondary treatment systems can be used for biological degradation of ____________ in municipal waste waters. Options: A . &nbspCarbon dioxide and methane B . &nbspNitrogen and CO₂ C . &nbspCO and methane D . &nbspOrganic pollutants

Secondary treatment systems can be used for biological degradation of _________

Question

Secondary treatment systems can be used for biological degradation of ____________ in municipal waste waters.

Options:

A . Carbon dioxide and methane

B . Nitrogen and CO₂

C . CO and methane

D . Organic pollutants

Answer: Option D
Answer: (d).Organic pollutants

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Question 10. Which of the following is not an after effect of accumulation of nitrogen and phosphorus in aquatic ecosystem?....

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