Question

explain the type coal in detail

Answer 1

coal is useful , in previous day's the steam engine runs with the help of COAL. coal is at underground

Answer 2

Coal is formed due to the compression of plant material over million of years. Most of the coal was formed during the carboniferous period. Following are the 4 different types of coal

PEAT-It has low carbon content and has high moisture

LIGNITE-It is a low grade brown coal,soft and has high moisture content

BITUMINOUS-It contains high carbon content and low moisture.It is the most popular coal in commercial sector.

ANTHRACITE-It is the highest quality hard coal.