How is black and brown coal produced?
Coal is formed by the burial and heating of large quantities of organic matter.
Brown coal is a low-grade form of coal, formed by moderate burial and pressure.
Black coal is formed by increasing pressure and temperature, removing more of the volatiles and resulting in a more carbon-rich coal.
There is only one country in Australia, and that is Australia. It is both a country and a single continent. Australia is currently the world's fourth largest producer of black coal, the fifth largest producer of brown coal (even though it is ranked first in recoverable brown coal resources), and the largest exporter of coal.
COAL: A combustible black or dark brown rock consisting chiefly of carbonized plant matter, found mainly in underground seams and used as fuel. Coal is composed primarily of carbon along with variable quantities of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen COKE: A solid fuel made by heating coal in the absence of air so that the volatile components are driven off COAL TAR: Coal tar is a brown or black liquid of extremely…