lake study - Discussion 396 Lake Study Lab Part I We have...

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10-17-07 Discussion 396 Lake Study Lab Part I We have ruled out that the problem is caused by pesticides in the water because the samplings have shown that the levels of these substances are below toxic levels for most fish. The dissolved oxygen level is well within acceptable standards for normal lake water. The levels of calcium and mercury in the water were within acceptable margins for the survival of fish. We hypothesize that since the levels of lead and iron are above normal safe levels, either iron, lead or a combination of the two are causing the problems with the fish. We came to this conclusion because after comparing the levels of iron and lead from our samples with the levels in the literature and realizing that our levels appeared to be high. *See attached Data Table 1 Part II When it came to finding experimental data, we limited our experiments to those which would test our hypothesis. For each of our experiments, we used the average concentrations from our samples as the amount of the substance in the
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lake study - Discussion 396 Lake Study Lab Part I We have...

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