The materials formed at each step of the process are
1) Peat
2) Lignite
3) Sub-Bituminous and Bituminous Coal
4) Anthracite (may also form from oil)
The final stage, which most coal does not reach, is graphite or pure carbon.
There are four stages in the repair of a broken bone: 1) the formation of hematoma at the break, 2) the formation of a fibrocartilaginous callus, 3) the formation of a bony callus, and 4) remodeling and addition of compact bone.
Coal formation and decomposition of organic materials.
1.peat 2.lignite 3.bitimunous(soft coal) 4.anthracite
it works by eating tatie
They are peat, lignite, bitumen, and athracite. *they are already in order.* : )
Coal formation has 5 stages. The first stage is called Peat which is the brown to black build-up of materials from woody plants.
The materials formed at each step of the process are 1) Peat 2) Lignite 3) Sub-Bituminous and Bituminous Coal 4) Anthracite (may also form from oil) The final stage, which most coal does not reach, is graphite or pure carbon.
Peat and lignite (brown coal) are both beginning stages in the production of coal by natural processes. But coals are not all produced from peat.
Fist Stage Of Coal Formation Is Called
Coal formation is largely the result of fossilization of organic matter.
Anthracite.
Tetrads are groups of four and can refer to genetics, general relativity, or chromosomal formation. A tetrad is a group of four chromatids that are in the first stages of meiosis.