Coal is an organic rock that is composed of vegetation that may have originated in swamps and marshes.
Coal
Coal.
Coal
Coal.
It is called humus.
coal
they must be buried.
The remains of plants and animals buried in seas long ago
Such remains are known as fossils if the sediment is changed over eons into a sedimentary rock.
coal.
It is called humus.
It is called humus.humus
It is called humus.humus
fossil fuels
Dead and decayed remains of plants and animals, called Humus.
The type of rock that forms where the remains of plants and animals are deposited in thick layers are called organic sedimentary rock.
Answer by Ibrahim El-OseryConfidence votes 33.1KYes, fossils are the traces and remains of organisms and plants that were buried and maintained under pressure
No, they do not. Plants contribute most of the organic remains that form humus.
coal
Organic Sedimentary Rocks are formed from remains of plants and animals.
Is natural gas formed by animal or plant remains