Which list presents, in the correct order, forms of coal from the first stage of development to the last stage of development?

peat, lignite, bituminous, anthracite

peat, bituminous, anthracite, lignite

peat, lignite, anthracite, bituminous

bituminous, peat, lignite, anthracite

1 answer

peat, lignite, bituminous, anthracite