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

Related questions
More UPSC Prelims practice from the same subject and topic.
- Prelims 2010GS1economy
The SEZ Act, 2005 which came into effect in February 2006 has certain objectives. In this context, consider the following: 1. Development of infrastructure facilities. 2. Promotion of investment from …
- Prelims 2010GS1economy
Consider the following countries: 1. Brazil 2. Mexico 3. South Africa According to UNCTAD, which of the above is/are categorized as “Emerging Economies”?
- Prelims 2010GS1economy
An objective of the National Food Security Mission is to increase the production of certain crops through area expansion and productivity enhancement in a sustainable manner in the identified district…
- Prelims 2010GS1economy
In the context of the affairs of which of the following is the phrase “Special Safeguard Mechanisms” mentioned in the news frequently?
- Prelims 2010GS1economy
Which of the following terms indicates a mechanism used by commercial banks for providing credit to the government?
- Prelims 2010GS1economy
Which one of the following statements is an appropriate description of deflation?