Question

Match the following energy sources with their characteristics.

• A. Buried sunshine
• B. Black gold
• C. Cleanest fuel

Answer 1

Coal is formed when dead plants and animals get buried under the earth. So it is sometimes referred to as buried sunshine.
Due to its black colour and valuable nature, petroleum is known as black gold.
Natural gas does not release a large amount of waste and harmful gases in the atmosphere, so it is the cleanest fuel.