When the figure is not level people cannot know what is meant by width, depth, or height without being told (or without labels), although length is generally still assumed to mean the direction in which the figure is longest..
Crude coal tar is a raw material which is further distilled to produce various carbon products, refined tars and oils used as essential components in the production of aluminum, rubber, concrete, plasticizers, coatings and specialty chemicals.oke is uses as a fuel and as a reducing agent in smelting iron ore in a blast furnace to manufacture steel and in foundry operations. Crude coal tar consists of a mixture of naturally occurring compounds containing hydrogen and carbon that are common to all organic fuels including coal, petroleum and wood.
Quick Answer. Coal forms from the physical and chemical alteration of organic peat moss. This process, called coalification, takes hundreds of years to complete. During coalification, peat moss undergoes a series of transformations as a result of bacterial decay, compaction, variations in temperature and time.