Question

Which of the following is a renewable source of energy?
A. Ethanol
B. Jatropha plant
C. Bagasse
D. All of the above

Answer 1

Hint: A renewable resource is a resource that can be used repeatedly and replaced naturally. Renewable energy almost never runs out.

Complete answer:
Renewable sources of energy are ethanol, Jatropha plant, and bagasse.
- Renewable resources include biomass energy (such as ethanol), hydropower, geothermal power, wind energy, and solar energy.
- The organic material derived from plants or animals is known as biomass. This includes wood, sewage, and ethanol (which comes from corn or other plants). Biomass can be used as a source of energy because this organic material has absorbed energy from the Sun. This energy is, in turn, released as heat energy when burnt.
- Jatropha plant is a non-edible perennial crop that is generally used as a biofuel. In Brazil, India, Vietnam, Ghana, Zambia, etc. the biodiesel producing activity using Jatropha is highly successful.
- Bagasse refers to the dry pulpy fibers left after the juice being extracted from sugar cane. It is being used as a fuel source for sugar mills when burned in quantity, it produces sufficient heat energy. Because it is a plant-based product, it is easily compostable and renewable.

So, the correct answer is ‘All of the above'.

Note:
- Bio-diesel is an eco-friendly, renewable, alternative diesel fuel obtained from domestic renewable resources i.e. vegetable oils (edible or non- edible oil) and animal fats, for example, Jatropha plant, Pongamia, Karanja, etc.
- Nowadays, lignocellulosic biomass is being converted into ethanol to be used as a renewable source of energy.