something
If the layer is of dead plants, it is a compressed layer known as a coal seam.
dead organisms get buried in dirt,sand,etc which harden and turn into rocks over a long period of time.
Sedimentary rock
Sedimentary rock (limestone, slate, etc) forms when small particles sink onto the seabed, along with dead animals or plants, forming deep layers of mud. Over a very long time, the lay may be subjected to enough pressure to form sedimentary rock, encasing the fossils.
Chemically formed sedimentary rocks are formed from dead remains of plants and animals that is from an organic sediment.
If the layer is of dead plants, it is a compressed layer known as a coal seam.
Dead and decayed remains of plants and animals, called Humus.
It's NOT photosynthesis.
I think they're found in the fossils of dead animals or plants.
dead organisms get buried in dirt,sand,etc which harden and turn into rocks over a long period of time.
Coal is a type of organic sedimentary rock formed from dead plants.
Sedimentary rock
craphead
Dirt
Sedimentary rock (limestone, slate, etc) forms when small particles sink onto the seabed, along with dead animals or plants, forming deep layers of mud. Over a very long time, the lay may be subjected to enough pressure to form sedimentary rock, encasing the fossils.
sedimentary
Chemically formed sedimentary rocks are formed from dead remains of plants and animals that is from an organic sediment.