Answer:
A technique in which two or more vanishing points are used on a flat surface to create the illusion of depth.
Explanation:
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The melanin in Chloe's hair is decreasing. Melanin is a substance in our hair, skin, and eyes that determines pigment. If Chloe has more melanin in her hair, her hair will be darker; if Chloe has less melanin in her hair, her hair will be lighter.