Question

pls help me with this project
don't spam it is important help pls​

Answer 1

coal is classified into four main types,or ranks anthracite, bituminous,subbituminous and lignite.The ranking depends on the types and amount of carbon the coal contains and on the amount of heat energy the coal can produce .

I hope it will help you please make me brainlest

Answer 2

Coal is classified into four main types, or ranks: anthracite, bituminous, subbituminous, and lignite. The ranking depends on the types and amounts of carbon the coal contains and on the amount of heat energy the coal can produce.