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प्रैक्टिस MCQs, समाचार और टाइपिंग ट्यूटर
Prepare for SSC, CGL, UPSC and more — daily GK practice
SSC, CGL, UPSC और अन्य परीक्षाओं की तैयारी — दैनिक GK अभ्यास

Environmental issues like pollution are managed through laws and technologies. What is a measure for air pollution control?

  • Incineration without filters
  • Catalytic converters in vehicles
  • Open burning
  • Deforestation
Answer: 2