Answer:
In relief printing, the artist draws a design on a smooth block of material—usually wood or linoleum—and uses tools to carefully cut away the areas that are not to be printed, leaving behind a raised surface of lines and shapes.
Distribution of the visual weight of objects, colors, texture & space
Because there wasn't much written about prehistoric art.
I am 100% positive that the answer is true.
This way, the teacher can express their love for art and share and teach it to those want to learn. It is also good for an art lover to become an art teacher since they are able to do something they know how to do. (They shouldn’t become an art teacher, however, if they do not have experience doing art and they are just into looking at and/or collecting)