👉 Practice this question interactively (Hindi / English / AI)

With reference to the role of biofilters in Recirculating Aquaculture System, consider the following statements: 1. Biofilters provide waste treatment by removing uneaten fish feed. 2. Biofilters convert ammonia present in fish waste to nitrate. 3. Biofilters increase phosphorus as a nutrient for fish in water. How many of the statements given above are correct?

UPSC · 2023 · Environment & Science & Tech
Question:
With reference to the role of biofilters in Recirculating Aquaculture System, consider the following statements: 1. Biofilters provide waste treatment by removing uneaten fish feed. 2. Biofilters convert ammonia present in fish waste to nitrate. 3. Biofilters increase phosphorus as a nutrient for fish in water. How many of the statements given above are correct?

Options

Only one
Only two
All three
None
Answer: Only two

Explanation:
Biofilters mainly perform biological filtration—removing organic waste and converting toxic ammonia to nitrate through nitrification. Statements 1 and 2 are correct.

👉 Want AI explanation? Open in MCQ App

← Previous Next →

Recommended articles

Practice More PYQs

📱 Follow Us

Telegram Instagram YouTube