I find it funny that those two lines on the graph need to be labelled high and low, as if the one peaking nearer the higher figures, would confuse people were it not labelled as high
Especially considering they're temperature charts, I mean who'd not understand the meaning of a red and blue line anyway, except colour blind people, in which case I refer to the previous comment.
I presume those temperature charts were designed for 4-5 year olds, that haven't learned to count to 100 yet, only to 10 or 20

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