explain the formation of fossil fuels
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Fossil fuel is a general term for buried combustible geologic deposits of organic materials,formed from decayed plants and animals that have been converted to crude oil, coal, natural gas, or heavy oils by exposure to heat and pressure in the earth's crust over hundreds of millions of years.
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From dinosaur to fossil
Stage 1
A dinosaur dies and is buried before the remains are completely destroyed.
Stage 2
Over time, layers of sediment build up and press down on the buried remains.
Stage 3
Dissolved minerals, transported by ground-waters in the sediment, fill tiny spaces in the bones. The combination of pressure, chemical reactions and time eventually turns the sediments into rock and the bones into mineralised fossils.
Stage 4
The fossils remain within the rock until uncovered through erosion or excavation.
Hope it helps
Stage 1
A dinosaur dies and is buried before the remains are completely destroyed.
Stage 2
Over time, layers of sediment build up and press down on the buried remains.
Stage 3
Dissolved minerals, transported by ground-waters in the sediment, fill tiny spaces in the bones. The combination of pressure, chemical reactions and time eventually turns the sediments into rock and the bones into mineralised fossils.
Stage 4
The fossils remain within the rock until uncovered through erosion or excavation.
Hope it helps
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