fossils
Fossils
mold
Actually, any kind of plant/animal could have died to form coal. But not just any type of coal. Bituminous coal, to be exact. This happens when dead plant/animal's remains (though mostly plant, a small percentage of bituminous coal is from animal remains) are buried under a body of water (usually a swamp) and decay there for a while, forming a thick layer. Then it needs to be buried by a lot of 'sediments', usually mud/sand to compress the plant/animal remains into coal.
a Cast fossil is formed when the mold is filled with another material forming a cast.
When the animal dies its skeleton settles on the sea floor and is buried by sediment. that thickens and begins to turn to stone. The skeleton dissolves and a mold is formed. Minerals crystallize inside the mold and the cast is formed.
4 Conditions for fossil formation would be, looking up answers, being a fresh skater kid and asking a teacher for the answer in a smart way that make her think you really wanna know the answer (x good luck out there,(x -Andy
fossils
Such remains are known as fossils if the sediment is changed over eons into a sedimentary rock.
Over time, any remains of living things in sediment may slowly harden and change into fossils trapped in the rock.
Cause they well be I stink
mold
Is natural gas formed by animal or plant remains
fossil fuels
You have to have the dead remains buried quickly and then never distroyed
Typically something dies and gets buried in sediment. Over time the sediment transforms to sedimentary rock and the remains of the dead plant or animal fossilizes. There are a few variants on this but that is the basic process.
mold
Ichnofossil, or an impression fossil. http://en.wikipedia.org/wiki/Trace_fossil
Organisms are buried under sediment.