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        Earth on Edge | Interactive Quiz

        The scientists in Earth on Edge say that humans are failing to wisely manage the ecosystems on which our lives depend. And, as the marine ecologist in the program, Carl Safina, reminds us, "Our everyday choices—those we make shopping, eating, building, and commuting—can make the difference between a passing grade or future failure." Do you know enough to help guide Earth's ecosystem's to a "passing grade"? Take our quiz and test your knowledge!

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