Final answer:
Oil, natural gas, and coal are examples of fossil fuels. They're formed from the remains of ancient plants and animals over millions of years.
The correct option is c.
Step-by-step explanation:
The correct answer to the question 'Which of these are examples of fossil fuels' is option c. oil, natural gas, and coal. These substances are known as fossil fuels because they formed over millions of years from the remains of plants and animals that lived in the Earth's prehistoric past. Their fossilized remains over time, under heat and pressure, transformed into fuels we use today. This is why options like wind, water, solar energy, and biomass are not considered fossil fuels, as they are renewable sources of energy rather than finite reserves formed from ancient organic matter.
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