Oil and natural gas, also called fossil fuels, are formed by anaerobic decomposition of dead and buried organisms.
Anaerobic decomposition is the decomposition of something while lacking oxygen, which is caused by it being buried in mud and sediment, which over time (millions of years) will cause favorable conditions for fossil fuels to form.
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Oil and natural gas are formed from the remains of plants and animals that lived in ancient oceans. Over time, these organic materials were buried deep in the Earth's crust and subjected to heat and pressure, causing them to undergo a transformation into oil and natural gas. This process, known as diagenesis, takes millions of years to occur.
No, crude oil and natural gas are two distinct fossil fuels. Crude oil is a liquid formed from organic matter buried deep underground, while natural gas is a gaseous fossil fuel mainly composed of methane.
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Oil and natural gas are both classified as fossil fuels.
Natural gas is found along with crude oil in underground reservoirs because both are hydrocarbons formed from organic matter that decomposed over millions of years. This is why many oil fields also produce natural gas as a byproduct. Methane, the primary component of natural gas, can be found in conjunction with crude oil deposits.
No natural gas is natural gas.