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cmdrkyla t1_j61w6gi wrote

2 is the only reasonable comparison (without converting between 2 systems instead of using 1. And even than, who cares except very specific scientists what temperature mercury freezes at.

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RandoCalrissian11 t1_j633r11 wrote

When do you need to know when water boils? Turn heat on high and wait. The temp water freezes is much more useful information and everyone knows that.

The rest are very equal comparisons.

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