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UPSC 2024: Consider the following materials: 1. Agricultural residues 2. Corn grain 3. Wastewater treatment sludge 4. Wood mill waste Which of the above can be used as feedstock for producing Sustainable Aviation Fuel?
(a)1 and 2 only
(b)3 and 4 only
(c)1, 2, 3 and 4
(d)1, 3 and 4 only
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Not attemptedCorrect Answer: (c) 1, 2, 3 and 4
Commercial SAF pathways can use a wide range of biomass and waste feedstocks: lignocellulosic agricultural residues (e.g., straw), starch/sugar crops such as corn grain, wet wastes like sewage-sludge from wastewater-treatment plants (processed via hydrothermal liquefaction), and woody/wood-mill residues. Therefore all four materials listed are valid SAF feedstocks. ([mdpi.com](https://www.mdpi.com/1494108?utm_source=openai))
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Frequently Asked Questions
What is the correct answer to this UPSC 2024 Science & Technology question?▼
The correct answer is option (c): 1, 2, 3 and 4. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Energy & Environment question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 2024, GS Paper 1, as Question 46. It falls under Science & Technology > Energy & Environment.
What is the difficulty level of this UPSC question?▼
This question is rated "moderate". It requires sound conceptual understanding of the topic.
How many UPSC Prelims questions have been asked from Energy & Environment?▼
UPSC has asked 48 questions from Energy & Environment (under Science & Technology) across multiple years. Visit the topic page to see the full list and year-wise trends.