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65 million years ago there was a mass extinction that is best known for killing the dinosaurs. There was also a large deposit of dust that contained substances only found in asteroids. What most likely
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Nov 4, 2018
Physics
middle-school
5
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14.7k
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How does a plane and parachute manipulate air resistance differently
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Apr 21, 2018
Biology
middle-school
4
votes
169k
views
Evaluate the expression 15-n when n =8
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Mar 5, 2018
Mathematics
high-school
5
votes
162k
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What resulted from the trade network developed during the Gupta Empire?
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Feb 9, 2018
History
high-school
2
votes
27.8k
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