Final answer:
Hydrogen is not considered a fossil fuel as it is an element and does not come from organic matter.
Step-by-step explanation:
The correct answer is d) Hydrogen. Hydrogen is not considered a fossil fuel. Fossil fuels refer to energy sources that are derived from the remains of ancient plants and animals, such as coal, oil (petroleum), and natural gas. These fuels were formed over millions of years through the processes of burial, heat, and pressure. On the other hand, hydrogen is an element and does not come from organic matter, so it is not considered a fossil fuel.
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