Question

Which of the following is the non-renewable source of energy?

• A. River
• B. Wind
• C. Coal
• D. Biogas

Answer 1

The correct option is C

Coal

Explanation of the correct option

C:Coal

1. Coal is regarded as a nonrenewable energy source since it takes millions of years to produce.
2. Coal is formed up of the energy accumulated by plants that lived hundreds of millions of years ago in swampy forests.
3. Layers of soil and rock suffocated the plants over millions of years.

Explanation of the incorrect option
A:River

1. It is a renewable source of energy
2. The hydrological cycle recharges renewable water resources, such as groundwater aquifers and surface water such as rivers and lakes, until they are overexploited.

B:Wind

1. Wind power is a renewable energy source. In general, wind energy has fewer negative environmental effects than many other energy sources.

D:Biogas

1. Because it has a continuous production-and-use cycle and produces no net carbon dioxide, biogas is a renewable resource.
2. As the organic stuff grows, it is converted and utilized. It then regrows in a never-ending cycle.

Hence, the correct answer is option (C).