Respuesta :
(This is oil)
Oil is another fossil fuel. It was also formed more than 300 million years ago. Some scientists say that tiny diatoms are the source of oil. Diatoms are sea creatures the size of a pin head. They do one thing just like plants; they can convert sunlight directly into stored energy.
In the graphic on the left, as the diatoms died they fell to the sea floor (1). Here they were buried under sediment and other rock (2). The rock squeezed the diatoms and the energy in their bodies could not escape. The carbon eventually turned into oil under great pressure and heat. As the earth changed and moved and folded, pockets where oil and natural gas can be found were formed (3).
Oil has been used for more than 5,000-6,000 years. The ancient Sumerians, Assyrians and Babylonians used crude oil and asphalt ("pitch") collected from large seeps at Tuttul (modern-day Hit) on the Euphrates River. A seep is a place on the ground where the oil leaks up from below ground. The ancient Egyptians, used liquid oil as a medicine for wounds, and oil has been used in lamps to provide light.
(This is coal)
In the tropical swamps of ancient Kentucky, no one was around to hear whether falling trees made a sound. About 300 million years later, though, the noise is inescapable — those trees are now coal, a fossil fuel that has long helped humans generate electricity, but whose inner demons also conjure climate change.
Coal still provides a large chunk of U.S. electricity, and since more than a quarter of global reserves sit under American soil, it's an understandably tempting power source. The organic rock is so potent and plentiful, in fact, that U.S. coal resources have a higher total energy content than all of the world's known recoverable oil.
Oil is another fossil fuel. It was also formed more than 300 million years ago. Some scientists say that tiny diatoms are the source of oil. Diatoms are sea creatures the size of a pin head. They do one thing just like plants; they can convert sunlight directly into stored energy.
In the graphic on the left, as the diatoms died they fell to the sea floor (1). Here they were buried under sediment and other rock (2). The rock squeezed the diatoms and the energy in their bodies could not escape. The carbon eventually turned into oil under great pressure and heat. As the earth changed and moved and folded, pockets where oil and natural gas can be found were formed (3).
Oil has been used for more than 5,000-6,000 years. The ancient Sumerians, Assyrians and Babylonians used crude oil and asphalt ("pitch") collected from large seeps at Tuttul (modern-day Hit) on the Euphrates River. A seep is a place on the ground where the oil leaks up from below ground. The ancient Egyptians, used liquid oil as a medicine for wounds, and oil has been used in lamps to provide light.
(This is coal)
In the tropical swamps of ancient Kentucky, no one was around to hear whether falling trees made a sound. About 300 million years later, though, the noise is inescapable — those trees are now coal, a fossil fuel that has long helped humans generate electricity, but whose inner demons also conjure climate change.
Coal still provides a large chunk of U.S. electricity, and since more than a quarter of global reserves sit under American soil, it's an understandably tempting power source. The organic rock is so potent and plentiful, in fact, that U.S. coal resources have a higher total energy content than all of the world's known recoverable oil.
A shorter answer would be: oil comes from fossil fuels, and fossil fuels come from the remains of prehistoric organism (fossils)
