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Direct Air Capture (DAC) Question in UPSC Prelims 2025
Q. With reference to ‘Direct Air Capture’, an emerging technology, which of the following statements is/are correct?
- I. It can be used as a way of carbon sequestration.
- II. It can be a valuable approach for plastic production and in food processing.
- III. In aviation, it can be a source of carbon for combining with hydrogen to create synthetic low-carbon fuel.
Select the correct answer using the code given below:
✅ Correct Answer: C. I, II and III
Explanation:
- Statement I: Correct. DAC is a method of carbon removal, useful for sequestration (DACCS).
- Statement II: Correct. Captured CO₂ can be used in producing certain plastics and food processing (e.g., carbonation, packaging gases).
- Statement III: Correct. CO₂ from DAC can be combined with green hydrogen to create synthetic aviation fuels (e-fuels).
Source: https://www.catf.us/resource/decarbonizing-aviation-enabling-technologies-net-zero-future/#:~:text=Clean%20hydrogen%20with%20low%20or,decline%20and%20the%20market%20grows.
