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Nuclear fusion is the source of energy for stars. besides hydrogen, which other element is most likely also common in stars?
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Ascientist wants to know how individual lions within a pride interact with each other in their own environment. to do this, the scientist sedates and tags all of the lions within a pride. then, he places several remotely-controlled video cameras near the lions' den and performs an observational field study. he collects continuous video footage over the span of one year, analyzes the video, and then forms conclusions based on his observations.
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Chemistry, 23.06.2019 03:30
How many grams of sodium chloride are in 250ml of a 2.5m naci solution
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