An important role is the answer
1.a
2.b
3.c
4.d
5.a
6.a
7.b
8.c
9.b
10.a,d
Answer 10
Explanation: It looks really good man
Simultaneous contrast refers to the way in which two different colors affect each other. The theory is that one color can change how we perceive the tone and hue of another when the two are placed side by side.