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Exam Lesson Name:
Energy Conversions

Exam Number:
700697RR

Question 4 of 20:

Select the best answer for the question.

Which two elements primarily make up fossil fuels?

A. Hydrogen and carbon

B. Carbon and oxygen

C. Hydrogen and oxygen

D. Carbon and nitrogen



Answer :

GinnyAnswer

Final answer:

Fossil fuels are mainly composed of hydrogen and carbon in various forms - solid, liquid, or gas, impacting the environment through CO2 emissions.


Explanation:

Fossil fuels primarily consist of hydrocarbons which are compounds made up of hydrogen and carbon. These fuels can be in solid form like coal, liquid form like petroleum, or gaseous form like natural gas. The combustion of fossil fuels releases carbon dioxide into the atmosphere, contributing to greenhouse gas emissions.


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