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?

Consider the following information: In how many of the above rows is the given information…

Consider the following information: In how many of the above rows is the given information…

Consider the following information: In how many of the above rows is the given information…

Consider the following pairs : How many of the pairs given above are correctly matched…

With reference to the sectors of the Indian economy, consider the following pairs: How many…