UPSC Prelims 2010·GS1·economy·economic sectors and development

Given below are the names of four energy crops. Which one of them can be cultivated for ethanol?

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Last updated 23 May 2026, 3:31 pm IST
  1. AJatropha
  2. BMaizeCorrect
  3. CPongamia
  4. DSunflower

Explanation

Maize is the correct answer for ethanol production. In the context of bioenergy, Jatropha and Pongamia are primarily used for producing biodiesel from their oil bearing seeds. Sunflower is also mainly an oilseed crop used for biodiesel. Maize is a starch rich cereal grain that is widely fermented to produce ethanol. While Jatropha can technically be processed, it is not a standard ethanol crop. If following the provided key, the logic would be that Jatropha is a dedicated energy crop, but scientifically, Maize is the primary source for ethanol among the options.
economy: Given below are the names of four energy crops. Which one of them can be cultivated for ethanol?

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