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Direct Air Capture (DAC) technology removes CO₂ directly from:
- Flue gases
- Ambient air
- Ocean water
- Soil
Answer: Ambient air
DAC uses chemical sorbents to capture CO₂ from atmosphere (~400 ppm), enabling negative emissions. Energy-intensive but crucial for hard-to-abate sectors. India's National Carbon Capture Program supports R&D. [[MoEFCC, DST Reports]]