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Consider the following: 1. Battery storage 2. Biomass generators 3. Fuel cells 4. Rooftop solar photovoltaic units How many of the above are cons
With reference to radioisotope thermoelectric generators (RTGs), consider the following statements: 1. RTGs are miniature fission reactors. 2. RTGs
Consider the following materials: 1. Agricultural residues 2. Corn grain 3. Wastewater treatment sludge 4. Wood mill waste Which of the above can
Consider the following pairs: Plant : Description I. Cassava : Woody shrub II. Ginger : Herb with pseudostem III. Malabar spinach : Herbaceous cli
With reference to Unmanned Aerial Vehicles (UAVs), consider the following statements : I. All types of UAVs can do vertical landing. II. All types o
The correct answer is option (b): publicly violating Salt Law at Dandi. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
This question was asked in UPSC CSE Prelims 2025, GS Paper 1, as Question 45. It falls under Science & Technology > Energy & Environment.
This question is rated "moderate". It requires sound conceptual understanding of the topic.
UPSC has asked 49 questions from Energy & Environment (under Science & Technology) across multiple years. Visit the topic page to see the full list and year-wise trends.