Eli5 how is crude oil made?

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As a child, I was always told that when the dinosaurs died, they eventually got broken down into crude oil, which get refined into a list of products.

Well I seen a post somewhere that was saying the crude oil wasn’t made from dinosaurs. So if it’s not made from the remains of the dinos, how it is made then.

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Anonymous 0 Comments

It came in great part from early plant matter that soaked all that carbon dioxide from the atmosphere and that that was buried before it could decompose, in part because decomposers were not there yet.

For example when wood first evolved that was nothing being able to eat it, so it accumulated dor millions of years and was buried, transforming to coal and oil. Then fungi evolved a way to eat wood so it stopped that process.

Thats why there wont be significant new reserves of crude that will be created.

Also imagine millions of years worth of trapped carbon dioxide being released in a couple hundred years… that what is happening today.

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