Question

most fossil fuels derive their energy from which of these prehistoric processes?
decomposition
fractures
erosion
vulcanism

Explanation:

Fossil fuels are formed from the decomposition of organic matter (such as plants and animals) over millions of years. This decomposition process under specific geological conditions (heat and pressure) leads to the formation of fossil fuels like coal, oil, and natural gas. Fractures refer to cracks in rocks, erosion is the wearing - away of landforms, and vulcanism is related to volcanic activity. None of these directly provide the energy source for fossil fuels in the way decomposition does.

Answer:

decomposition