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Do you know Planet Earth? Take the quiz.

NASA
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You live here, work here, play here, eat here, and sleep here. But how well do you know your native planet?

1. What is Earth's circumference at the equator?

About 2,500 miles

 

About 25,000 miles

 

About 250,000 miles

 

About 2.5 million miles

 
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