1 How old is the Earth? 2 How tall in the CN Tower? 3 How high is Mount Everest? 4 How big is the Sahara Desert ? 5 How far can a flea jump? 6 How large is a 747 get?

1 How old is the Earth? 2 How tall in the CN Tower? 3 How high is Mount Everest? 4 How big is the Sahara Desert ? 5 How far can a flea jump? 6 How large is a 747 get?
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Is the earth 4.5 billion years old
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