3D objects have dimensions and depth
The answer you're looking for is motion.
Contrast: The work in today's art is a lot more advanced. Prehistoric people were simple and didn't use the major fundamentals of art. They're work is really abstract and really only consisted of warm colors and black.
Compare: Like some of today's artists, some of the prehistoric painting tell stories, or describe ones feelings.
Hope that helps!!! <span />
Answer
You’re right hand, when giving a firm handshake .
explanation
You always use you’re right hand just as the other person does to shake you’re hand .
He took exactly four years