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Answers by Vuks

Answers by Vuks
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A study must be valid to be considered reliable. true or false?
answered May 13, 2017
6 votes
37.0k views
George's highest target heart rate is 170. Yesterday on the stair stepper machine, his heart rate went to 172. What should he do the next time he uses this machine to get the most effective workout? A.
answered Feb 8, 2017
3 votes
94.0k views
Nitrogen is cycled out of the atmosphere due to A. winds and currents. B. bacteria and plants. C. animals performing respiration. D. plants performing photosynthesis.
answered May 4, 2016
2 votes
97.4k views
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