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Which factor can make green mixed from yellow and blue appear muddy?

Answer and explanation

Correct answer: A small trace of red

Green is produced by mixing yellow and blue, and red is its complementary colour in the traditional pigment colour wheel. If even a small amount of red contaminates the mixture, it partially neutralises the green and lowers its saturation, making the result look muddy or brownish. Clean yellow, clean blue, and a clean palette reduce contamination rather than causing it. Therefore, the small trace of red in option A is the correct explanation.

Related tags

Colour MixingMuddy GreenComplementary ColoursColour ContaminationColour TheoryArt EducationClass 9 Mcq

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