The formation of fossil fuels begins when:
A)dormant volcanoes fail to erupt,trapping carbon dioxide under ground.
B)biomass is deposited and buried with sediment instead of decaying.
C)carbon-rich rocks are buried beneath volcanic lava flows.
D)extensive fossil deposition occurs all at once,such as when the dinosaurs went extinct in a short period of time.

Question

Quizplus · Accepted Answer

Fossil fuels, such as coal and oil, are formed from the remains of ancient plants and animals that have been buried and subjected to heat and pressure over millions of years. In the case of coal, for instance, layers of dead plant matter accumulate and are buried under sediment, which prevents it from decaying. Over time, the pressure and heat of the earth cause the carbon in the plant matter to become concentrated, forming coal. This process, known as coalification, requires specific conditions that are not present during volcanic activity or fossil deposition.

The Formation of Fossil Fuels Begins When