Negative space is the space around and between the subject of an image. Negative space can be used to make an image. (Negative space is usually the background)
Positive space is the main focus of a artwork.
Negative space and positive space can swap to create different images.
No because plastic is not very environmentally friendly and takes for(n)ever to decompose
Because they evolve at different rates even though they are both art forms. They had different influences the time period wont effect it.