What are fossil fuels? Give three examples of fossil fuels. b) Describe how fossil fuels were formed. c) Explain how sun is considered to be the ultimate source of fossil fuels. d) Which fossil fuels were formed by the buried remains of small plants and animals? e) Which fossil fuel was formed by the buried remains of large land plants?
ScienceClass 10ICSEAnswered 27 Mar 2026
Answer
- Fossil fuels are the natural fuels that are formed deep under the earth from the pre-historic remains of the organisms. Coal, petroleum, and natural gas are the examples of fossil fuels.
- Fossil fuels are formed from the dead remains of the animals and plants that died millions of years These remains are buried deep inside the earth and are away from the reach of the oxygen. Also, the chemical effects bacteria along with continuous pressure and heat resulted in the formation of fossil fuels.
- Sun is considered to be the ultimate source of fossil fuel because sunlight is responsible for the growth of plants and animals that are buried inside the earth. Therefore, it can be said that plants and animals are made from sun’s energy and is converted into fossil fuels.
- Petroleum and natural
- Coal