Q. The fourth generation biofuels are obtained from genetically modified: [RAS Prelims 2025]
(1) Ligno-cellulose yielding crops
(2) Algae
(3) Archaebacteria
(4) Starch yielding crops
(5) Question not attempted
Answer: 2
Fourth generation biofuel (FGB) uses genetically modified (GM) algae to enhance biofuel production.
Although GM algae biofuel is a well-known alternative to fossil fuels, the potential environmental and health-related risks are still of great concern.
RPSC RAS Question Paper 2025: Download Prelims Exam General Studies and GK PDF
RAS Prelims Answer Key 2025: Download RPSC Prelims Paper PDF