Attempt this previous-year question. The correct option stays hidden until you choose.
With reference to bio-toilets used by the Indian Railways, consider the following statements:
1. The decomposition of human waste in the bio-toilets is initiated by a fungal inoculum.
2. Ammonia and water vapour are the only end products in this decomposition which are released into the atmosphere.
Which of the statements given above is/are correct?
Pick an option to check yourself.
• Correct Answer: D
• Bio-toilets use anaerobic bacterial consortium (DRDO-developed), not fungi; end products are biogas (CH₄, CO₂) and treated water.
• Ammonia and water vapour are not the only end products.
Attempt Prelims MCQs or open Mains questions by paper — then continue the same bank inside the app with visual decks.
GyanGram