Based on the relative sizes of flea and dog (1 mm and 1 m, respectively) versus human and Earth (2 m vs. 12800 km, respectively), does a flea have a better understanding of a dog than a human has of the Earth? Or vice versa? Why?
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flea to dog, a flea is 1/1000 that of a dog whereas a human is 1/6400000 that of the earth