UPSC Mains 2023 GS3 Q6 — Biotechnology and Energy
Discuss several ways in which microorganisms can help in meeting the current fuel shortage. (Answer in 150 words )
Question Decoded — examiner's intent
- Directive verbs
- Discuss
- Scope keywords
- microorganismscurrent fuel shortageseveral wayshelp in meeting
- Implicit sub-parts
- What are the specific biological processes (fermentation, photosynthesis, anaerobic digestion) involved?
- What are the distinct types of microbial fuels (Bio-ethanol, Bio-diesel, Bio-hydrogen, Biogas)?
- How do these address the 'current' crisis (sustainability, waste-to-energy, import reduction)?
- Common pitfalls
- Spending too many words on the biology of microbes instead of their application to fuel production.
- Failing to mention specific generations of biofuels (e.g., using algae for 3rd gen or microbes for 4th gen).
- Ignoring the 'current fuel shortage' context by not linking microbial solutions to energy security or carbon neutrality.
- Omitting the mention of microbial fuel cells (MFCs) which generate electricity directly.
- Dimensions required
- Technological/BiochemicalEnvironmental/SustainabilityEconomic/Energy SecurityWaste Management
- Marks allocation hint
Allocate 20 words for a crisp definition of microbial biofuels. Dedicate the bulk (100 words) to 4-5 distinct 'ways' or mechanisms like yeast fermentation, algal oils, and methanogens. Use the final 30 words to conclude on the scalability and the role of these technologies in India's Ethanol Blending Programme.
Unlock the full analysis for this question
You've seen the question and its examiner-intent decoding. Subscribers also get:
- 🔗 Similar Previous Year Questions — cross-year, cross-paper matches so you study the topic, not the question
- 📚 Source Map — verified citations from Laxmikanth, NCERT, PRS, Yojana, Economic Survey, Spectrum
- 🌱 How this topic is evolving — current-affairs bridge anchored to live TARS news clustering
- 🧭 Examiner's Pattern — how the topic has been framed across every year UPSC has tested it
- ✍️ Answer Skeleton — a structured outline (intro → body → conclusion) you can flesh out
- 🎯 AI evaluation — write your answer, get rubric-based scoring from gs-eval
Or browse 132+ free preview questions across all years and papers — the first 3 questions of every paper are unlocked.
Ready to practice?
Subscribers can attempt this question in 150 words and get an instant, rubric-based evaluation showing where they stand.
Subscribe to evaluate your answer →