Back in those times, nobody had the experience or practice to make the things they painted look realistic. They didn’t really have the years of experience of people before them to go off of. Also, they probably had quite limited tools.
I can only answer some, but you'll have to answer the others. I already answered the 1st and 2nd question previously.
6. What is pigment?
It is basically another word for color. Having a move fancy definition though: a pigment is the natural color of an animal or plant tissue
8. What are the three primary colors?
Red, Yellow, and Blue
9. Why is violet called a secondary color?
Secondary colors are created mixing primary colors. Since red and blue make violet, it makes violet a secondary color.
I hope this helped you! If you need any more help, please ask me.
Whole note=4 beats
Half note= 2 beats
Quarter note= 1 beat
Dotted half note= 3 beats
The rest= 1 beat
