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Why did the tomato turn red?

Well, you see, the tomato belongs to a family of plants called Solanaceae, which contains a pigment called lycopene. When the tomato begins to ripen, the chlorophyll in the fruit starts to break down, allowing the lycopene to become more visible. As a result, the tomato appears to turn from a greeni...
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How do you kidnap a vegan?

Chlorophyll.
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Why do leaves change color in Autumn?

Because instead of chlorophyll, they chloro-empty.
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