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Biology, 28.09.2019 15:30 jason9394

Ascientist plans to find out if dams harm a river ecosystem. he interviews 500 environmentalists and 450 of them believe that dams are harmful for the ecosystem. the scientist concludes that 90 percent of people believe that dams are harmful. why is the scientist's conclusion most likely unreliable?

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Ascientist plans to find out if dams harm a river ecosystem. he interviews 500 environmentalists and...
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