Question

why are fossil fuelrs rich in carbon?
Give answer in 4 to 5 sentence. ​

Answer 1

Answer:

Crude oil, coal, and natural gas supply about 85% of the energy used in the world. Fossil fuels are valuable as sources of energy because they contain hydrocarbons and other carbon-based materials. The carbon atoms form the framework or “skeleton” and the hydrogen atoms attach to them.

Explanation:

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Answer 2

Answer:

Fossil fuels are valuable as sources of energy because they contain hydrocarbons and other carbon-based materials. Hydrocarbons are any of a class of organic compounds composed only of carbon and hydrogen. The carbon atoms form the framework or “skeleton” and the hydrogen atoms attach to them.

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