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Mathematics
OpenStudy (anonymous):

Scientist want to set up an experimental procedure to examine the following. In an ecosystem, all producers are killed through a loss of fertility of the soil or through toxic contamination. Why would this issue be difficult to quantitate? In the scientific method, the validity of scientific claims is settled by referring to observations of phenomena. Scientific researchers repeat steps in an orderly fashion to collect data. Based upon data, it may be necessary to test the hypotheses. Why is it important not to assume outcome?

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