Another hypothesis about the mass extinction 66 million years ago involves a supernova happening near earth. this could have produced enough iridium to explain the anomaly. however, the supernova would have also led to two other results that were unlikely. describe one of the possible results from the supernova hypothesis that was not supported by the fossil record or the iridium layer.
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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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When the ionic compound nabr dissolves in water, brβ ions are pulled into solution by the attraction between what two particles? a. the na+ and brβ ions b. the na+ ion and the negative end of a water molecule c. the brβ ion and the positive end of a water molecule d. the brβ ion and the negative end of a water molecule
Answers: 1
Another hypothesis about the mass extinction 66 million years ago involves a supernova happening nea...
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