Coal Layer is a job that involves extracting coal from the ground. The term can be broken down into three parts: VEIN (4 letters), SEAM (4 letters), and EMBER (5 letters). A VEIN is a layer of coal that is found in the ground, a SEAM is a long, thin layer of coal, and an EMBER is a glowing, red-hot piece of coal. Coal Layer is a job that requires knowledge of the different types of coal and how to extract them safely.