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Pleaseeee I need help

Pleaseeee I need help-example-1
User Graves
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Impact created a huge explosion
User Uli Sotschok
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Scientists have found geologic evidence that shows an asteroid roughly 10-14
kilometers in diameter--the size of a small city-hit Earth about 66 million years ago. The impact created a huge explosion and a crater about 180 kilometers in diameter.
User Dwlamb
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