Which of the following plant species you would select for the production of bioethanol ?
Zea mays
Pongamia
Jatropha
Brassica
The production of bioethanol from plants depends on their glucose content. There are several crop plants (like corn) that have good glucose content, but they have been used as food crops. Therefore, your best bet is to choose plants that can be used as biofuel sources without compromising food production. Therefore, the jatropha plant is used for this purpose. The seeds of this plant are rich in fatty acid methyl esters, which produce a lot of energy. Hence, option 3 is correct.