In a scale model of the planets, Mercury and Mars should be the closest in diameter. Mercury has a diameter of about 4,880 kilometers, while Mars has a diameter of about 6,779 kilometers. Although they are not identical in size, they are relatively close in comparison to the other planets, making them the most closely sized in a model representation.
Question
Suppose a student develops a scale model of the planets. Which two planets should be the closest in diameter on the model?
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