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	Now that students have learned a bit about where mercury comes from, why it is an environmental issue of concern in Maine, and how it moves through ecosystems, they can begin to think about what questions they might ask and then begin to answer with their field work.</p>
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	The questions we are heading toward are those that fall under one overarching question: Which organisms have greater amounts of mercury in their tissues? There are many topically-relevant sub-questions that students might propose to investigate. For example:</p>