Biology, 28.09.2019 17:20, GERIANNCAYER

In 2004, tests were performed on the san carlos reservoir in arizona to determine levels and distributions of some toxic metals. cores of sediment were sampled and tested, and the scientists found that there were two time periods represented in the sediment by larger levels of copper than is recommended in sediment quality guidelines. what scientific investigation might these results lead the scientists to next?

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In 2004, tests were performed on the san carlos reservoir in arizona to determine levels and distrib...