How does the paint used for gouache usually come and what must be added to it before it is used?

List as many characteristics as you can to describe each style realism and propaganda

The earliest type of phonograph was recorded sound on a a. tape. b. metal cylinder. c. wax cylinder. d. vinyl disk.

To create an illustration of perspective, this artist did all of the following except 1) show clear orthogonal lines 2) have an implied vanishing point 3) distort proportion to keep the background and foreground the same size 4) include value changes between the foreground and background i was thinking maybe 1