What amount of red, green, and blue light is necessary to make black? Explain your reasoning

Well, black's hex code is #000000 or (R,G,B) = (0,0,0). You can think of black as 'the absence of color', so by removing all colors (setting everything to zero), you get black.

Explanation:

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b) mutualism

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a electronegativity decreases beacuse the size of nucleus is bigger.