ESS
Grade-8
Easy
Question
Fossil fuels are rich in___________.
- Hydrogen and nitrogen
- Carbon and Calcium
- Hydrogen and carbon dioxide
- Carbon and hydrogen
Hint:
Carbon and hydrogen
The correct answer is: Carbon and hydrogen
Fossil fuels are formed due to dead and decaying organic matter over million years under high pressure and heat.
Fossil fuels are composed of organic matter such as hydrocarbons.
Hydrocarbons include hydrogen and carbon, hence fossil fuels are mostly composed of carbon and hydrogen.
Examples of fossil fuels are coal, petroleum, natural gas, etc.
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After_________, the sediment turns into a rock, and the decay is turned into gas and petroleum.
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A __________ resource forms at a much slower rate at which it is consumed.
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