how are fossil fuels made?

Question

i dont get it? how are fossil fuels made? o_o''

Answer 1

As the name suggests 'fossil fuels' is formed from dead plants and animals that died millions of years ago.

Coal is formed in swampy conditions where plant remains were coverd by water and mud. This prevented the plant remains from oxidization and decaying. Over millions of years further deposits gradually compressesed the remains to form coal.

Oil is formed from the remains of prehistoric plankton and algae that have settled on the sea bed in large quantities. The lack of oxygen prevents decay and during the millions of years. Over time this matter is buried under heavy layers of sediment. The resulting high levels of heat and pressure cause the remains to metamorphose to form a susbtance called kerogen. If the temperature isn't too high then heat and pressure convert this into oil.

If this process happens deep enough in the Earth's crust then the higher temperatures 'crack' the oil to form natural gas.

Answer 2

There is some confusion with the term "fossil fuels". Fossils are not converted into fossil fuels. The term fossil fuels is used to describe naturally occurring carbon deposits (coal) and liquid and gaseous hydrocarbons (oil and gas). I will try to explain it in the most simple terms possible. Coal is the remains of vast areas of prehistoric swamp land vegetation where the dead plants were covered with water and over long periods of time built up and became compressed. The compression process gradually converted them to a fossilized state containing mainly carbon with other hydrocarbons which can now be mined and used as fuel. Oil is the result of minute sea life (plankton etc.) falling to the bottom of the sea and being covered other deposits causing it to break down in anaerobic conditions. The break down products of this process are oil and gas. I am sorry to say that Daniel Escurel is totally confused and misinformed and his answer makes absolutely no sense whatsoever. Dinosaurs have nothing to do with fossil fuels at all and as to the idea on them still living in caves is a complete fantasy.

Answer 3

Fossil fuels are part of the earth recycle system of our air. The plants take the CO2 in and give us back the O2 and holds on to the C . C is in the plants we eat and we get energy from it. The leaves has the C in them and fall off and washed down the river to the delta where it deteriorates into Gas ,Oil ,and Coal after a long time.

Answer 4

Fossil fuels, such as coal, are made from ancient forests that once inhabited marshy, wetland areas. When the trees died, and eventually when the swampy wetlands changed the tree remnants were buried under many layers of soil, and dirt, over time, and more layers of soil, this all becomes compacted... over millions of years, under immense heat and pressure under the Earth surface, the remains of huge forests are compacted and coal is formed.

Oil and gas is formed in a similar way, but this time from the abundance of prehistoric marine life which once filled the ocean floors.

Answer 5

They are made by dead animals and plant life which is trapped under layers of mud and subjected to high pressure over periods of hundreds of thousands, maybe millions, of years.

They are extracted by coal mining, oil drilling and gas wells

Answer 6

After millions of years dirt gets pialed on dread animals.they decay as the dirt keeps pialing the animal turns into a liguid that we use for gas.that is y we drill for oil. it take millions of yrs to decay to a licquid.