Question

Fossil fuels are made up of organic remains and

are a major source of energy for many people.
From where does the energy in fossil fuels
originate?
A. burning
B. heat
C. sunlight
D. carbonization

Answer 1

Answer: D. sunlight

All the energy in oil, gas, and coal originally came from the sun, captured through photosynthesis. In the same way that we burn wood to release energy that trees capture from the sun, we burn fossil fuels to release the energy that ancient plants captured from the sun.