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When you ride your bike uphill, where does the energy you use come from
asked
Mar 7, 2020
Physics
middle-school
1
answer
5
votes
28.3k
views
In 2014, Consumers spent $800 million on e-cigarette products. What percentage of the 2.8 billion dollars spend worldwide was spent by Americans
asked
Feb 20, 2020
Mathematics
middle-school
1
answer
2
votes
126k
views
What is The big bang Theory give a summary of The Theory
asked
Jan 14, 2020
Biology
middle-school
2
answers
1
vote
201k
views
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