UPSC Prelims 2021Environment & EcologyQuestion 8 of 18Among the following, which one is the least water-efficient crop?ASugarcaneBSunflowerCPearl MilletDRed gramSee explanationLinked Syllabus ConceptsRevision notes for concepts tested in this PYQ.Biochar Technology and its ApplicationsMonsoon Variability and its Socio-Economic Impacts
