Answers by Henridv
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Answers by Henridv

Answers by Henridv
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Who was the first man in orbit? A. John Glenn B. Yuri Gagarin C. Neil Armstrong D. Valentina Tereshkova
answered Jan 30, 2017
5 votes
215k views
What effect does observing a substance's physical properties have on the substance?
answered Dec 25, 2015
6 votes
189k views
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