Attempt this previous-year question. The correct option stays hidden until you choose.
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 nutrient for fish in water.
How many of the statements given above are correct?
Pick an option to check yourself.
• Correct Answer: B
• Biofilters in RAS remove organic waste including uneaten feed and convert toxic ammonia to nitrate via nitrifying bacteria (Nitrosomonas, Nitrobacter).
• They do not increase phosphorus; instead, systems aim to minimize phosphorus to prevent algal blooms.
• Statements 1 and 2 are correct; Statement 3 is incorrect.
Attempt Prelims MCQs or open Mains questions by paper — then continue the same bank inside the app with visual decks.
GyanGram