Alexander spreaded communication between East and West. Greek ideas and culture.
(hope this is what you are looking for.)
Answer:
The most important concept to remember is that you are responsible for your own safety and the safety of others. Most safety practices are common sense. Unfortunately, they can be forgotten or overlooked unless you make safe practices a habit or an instinct.
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.
The Answer is B ribbed arches