स्थिर वैद्युत अवक्षेपित्र (Electrostatic Precipitator) का प्रयोग मुख्य रूप से किसे नियंत्रित करने के लिए किया जाता है?

Which among the following air pollutants is NOT included in India's National Air Quality Index (NAQI)?

Carbon dioxide is primarily classified as a greenhouse gas because it has the ability to trap which of the following?