I believe the substance you are refering to is coal tar. Coal tar is a byproduct of burning large amount of coal when the smoke condences you are left with a very thick tar like substance. hope this helps.
Thick black liquid could be crude oil, motor oil, tar, or molasses, depending on the context.
Coal is a solid fossil fuel that is formed from decayed plants and organic matter over millions of years.
The streak color of coal is usually brownish-black or black.
The type of fossil fuel that exists as a thick black liquid is crude oil. It is a natural petroleum product found underground that can be refined into various fuels like gasoline, diesel, and jet fuel.
Coal tar is formed during the process of coal gasification or coking, where coal is heated in the absence of air to produce coal gas and other byproducts. The tar is a dark, thick liquid that contains various hydrocarbons and is collected as a byproduct of these processes.
Thick black liquid could be crude oil, motor oil, tar, or molasses, depending on the context.
oil
The thick black liquid formed by marine organisms is likely to be crude oil or a type of oil called asphalt. These substances can be produced through the decomposition of organic matter over long periods of time, leading to the formation of a thick, black, viscous liquid.
A sailor; a seaman., A thick, black, viscous liquid obtained by the distillation of wood, coal, etc., and having a varied composition according to the temperature and material employed in obtaining it., To smear with tar, or as with tar; as, to tar ropes; to tar cloth.
(as) black as coal (as) black as coal Completely black; totally without light or color.
It may describe some crude oil.
A thick liquid would have a high viscosity :)Thick liquids have a high viscosity. Example "What is the viscous liquid you are drinking?" is the same as "what is that thick liquid you are drinking?"
Maple syrup is a thick liquid that pours out slowly. Honey is another example of a thick substance that pours out in a slow stream. Tar is a thick black substance that also pours out slowly.
A thick liquid would have a high viscosity :)Thick liquids have a high viscosity. Example "What is the viscous liquid you are drinking?" is the same as "what is that thick liquid you are drinking?"
Coal is a solid fossil fuel that is formed from decayed plants and organic matter over millions of years.
Cassareep is a thick black liquid made from cassava root and spices, used as a flavouring, a preservative, and medicinally.
The streak color of coal is usually brownish-black or black.