Sewage water can be purified for recycling with the action of:
Correct answer: C. Micro-organisms
- A. Aquatic plants
- B. Penicillin
- C. Micro-organisms
- D. Fishes
Explanation
Micro-organisms decompose organic matter and help convert sewage pollutants into simpler, less harmful substances during biological wastewater treatment. Aquatic plants and fish may assist in some treatment systems but are not the primary agents.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Forest Ecology
837 free Forest Ecology MCQs from Forestry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Forestry questions like this
Forestry is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Forest Ecology questions
Air pollution is maximum caused by:
The percentage of run off water reaching the ocean and evaporation into atmosphere is respectively:
This acts as bioindicator of air pollution:
Photochemical smog is related to the pollution of:
The cause of water pollution?
Which of the following, when inhaled dissolves in the blood haemoglobin rapidly then O2?