What are fossil fuels? How they are formed?
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Fossils :
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Fossils are remains or impressions of preserved from geologic past. They mainly occurs in sedimentary rocks, lava , peat, amber, asphalt and snow.
Formation of fossils is called fossilisation. Fossil formation occurs in bogs, lava and in sediments at the bottom of deep waters where there is little oxygen and rate of decay is slow or absent. Dead bodies settle down at the bottom which get covered by sand and silt.
Under acidic Conditions some silica can penetrate cells of dead organism and form perfect fossil. In other cases, softer parts decay ultimately and hard parts persist as fossils. Impressions , moulds and casts develop if all parts decay after some time. The sedimented mud and sand harden to form sedimentary rock which may come to the surface due to upheavals in earth. This exposes the fossils.
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Fossils are remains or impressions of preserved from geologic past. They mainly occurs in sedimentary rocks, lava , peat, amber, asphalt and snow.
Formation of fossils is called fossilisation. Fossil formation occurs in bogs, lava and in sediments at the bottom of deep waters where there is little oxygen and rate of decay is slow or absent. Dead bodies settle down at the bottom which get covered by sand and silt.
Under acidic Conditions some silica can penetrate cells of dead organism and form perfect fossil. In other cases, softer parts decay ultimately and hard parts persist as fossils. Impressions , moulds and casts develop if all parts decay after some time. The sedimented mud and sand harden to form sedimentary rock which may come to the surface due to upheavals in earth. This exposes the fossils.
Thebrainlylegends:
Can you write little bit more :-P
Nice :)
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