Which one of the following is a non-renewable source of energy?
A. Hydel Energy
B. Thermal Energy
C. Solar Energy
D. Wind Energy
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → B only
A non-renewable source is one whose stock is used up as it is used and cannot be replaced within a human lifetime, such as coal, oil and natural gas. A renewable source is replenished by nature again and again.
A. Hydel Energy Incorrect. It comes from flowing water, which the water cycle keeps renewing, so it is renewable.
B. Thermal Energy Correct. Thermal power stations burn coal, oil or natural gas; these fossil fuels took millions of years to form and are used up once burnt, so thermal energy is non-renewable.
C. Solar Energy Incorrect. Sunlight reaches the Earth every day, so solar energy is renewable.
D. Wind Energy Incorrect. Winds are kept going by the Sun’s uneven heating of the Earth, so wind energy is renewable.