Question -:
Which of the following are fossil fuels?
A. Hydrogen
B. Hydroelectricity
c. Natural gas
D. Oil
Explanation -:
To solve this question first we need to understand what does Fossil fuels mean?
What does Fossil Fuels mean?
Fossil fuels is a natural substance formed from the buried remains of ancient organisms that can be used as a source of energy. It is formed by the decomposition of buried dead organisms under the pressure and heat in the earth's crust.
Opition c) is the correct answer because it is formed in the geological past from the remains of living organisms is known as a fossil fuel.
Opition d) is also the correct answer because it is formed when prehistoric plants and animals died and were gradually buried by layers of rock.
- Hence opition c and d is the correct answer.