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?
We once had a very old house with a cellar that was not used and not built for living there in any way. So you had plain rock walls and it was pretty moist. I do not know why but there was a single basket of coal down there. So I have seen black coal but I have not touched it.
Crude oil I have seen too back in school. My teacher had a sample to be able to show it.