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04/08/2021 12:30 pm
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(a) Describe how fossil fuels were formed.
(b) Explain how sun is considered to be the ultimate source of fossil fuels.
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04/08/2021 12:31 pm
(a) The plants and animals which died millions of years ago and got buried deep in the earth, away from the reach of oxygen, got converted into fossil fuels due to the chemical effects of pressure, heat and bacteria.
(b) Sun is considered to be the ultimate source of fossil fuels because it was the sunlight of long ago that made plants grow and the animals which got buried in the earth also ate plants. So, plants and animals which were originally made by sun’s energy only have been converted into fossil fuels.