I just realised that I have never seen or used it, neither crude oil of course, but there are more variants of it than this natural mineral that powers a lot of the world.
What led to you seeing or touching coal?
I just realised that I have never seen or used it, neither crude oil of course, but there are more variants of it than this natural mineral that powers a lot of the world.
What led to you seeing or touching coal?
I live in the valleys of south Wales. Walk through old coal mining areas and you’ll occasionally find lumps of it on the ground.