• Statement (I) is Incorrect: The Convention on Biological Diversity (CBD) was opened for signature during the United Nations Conference on Environment and Development (UNCED / Earth Summit) in Rio de Janeiro in June 1992 (not 1991), entering into force on 29 December 1993.
• Statement (II) is Incorrect: India signed the CBD on 5 June 1992 and ratified it on 18 February 1994 (not 1995), thereby becoming a party in 1994.
• Conclusion: Both Statement (I) and Statement (II) are incorrect.

Correct option: (2) Both Statement (|) and Statement (II) are incorrect

• Electrostatic Precipitators (ESPs):
• Highly efficient industrial particulate emission control devices that use high-voltage electrical fields (30–75 kV) to ionize flue gases, electrostatically charge airborne dust particles, and collect them onto oppositely charged collector plates.
• Achieves the highest collection efficiency (99.0% to 99.9%) for fine sub-micron particulates compared to cyclonic scrubbers, settling chambers, and dynamic precipitators. (Correct answer: Option 4)

• Sanitary Landfilling Practice:
• An engineered municipal solid waste disposal technique involving compaction of refuse in thin layers and daily covering with impermeable inert earth/soil.
• Properly managed, compacted, and sealed sanitary landfill cells prevent open decomposition odors and foul gas emissions at the surface while being highly cost-effective and economical. (Correct answer: Option 3)