Multiple choice

Stabilization ponds are used for municipal waste water treatment. The pond being dominated by zooplanktons is ________________.

  1. sludge lagoons

  2. oxidation ponds

  3. polishing ponds

  4. facultative lagoons

  5. anaerobic lagoons

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Polishing ponds are similar to oxidation ponds but receive effluent from an oxidation pond or from a plant with an extended mechanical treatment. These ponds are dominated by zooplankton.