Answer:
Creates the illusion of movement.
Explanation: Color is determined by Hue, Saturation, and Lightness and can manipulate depth on a 2d surface (like a television screen). This is used a lot in art to visualize depth perception. Modeling is a term of manipulating use of ”lightness” (of color) on positive space to make it appear closer or further away. Movement is most notable by something that can move in a 3d setting. In a 2d setting you can only really move left or right. With a 3d setting you can manipulate the positive space using different techniques.
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Answer:
It's called the circle of fifths because each key signature is separated by the distance of a fifth interval (for example: C to G on the circle above represents a fifth). Now move one space to G, the next key. You'll notice in the outer ring of the circle that a new sharp (teal box) comes along with it.
Explanation: