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You have seen that simple, closed systems ( are capable of sustaining life for 2-10 years. You have seen that Biosphere 2 could not sustain human life for 2 years without intervention. Consider the lessons learned from these systems in the following scenarios.


a.) What is the largest animal that could be sustained in Biosphere 2 for 10 years? Explain your reasoning considering life span, and carbon, water, and energy needs. (4 points)


b.) What modifications to the 1994 version of Biosphere 2 would need to be made to prevent oxygen levels from falling? (3 points)


c.) Could an enclosed, sustainable space station be designed that could support human life for 2 years? Explain your reasoning. Be as specific as possible regarding the carbon, water, and energy cycles. (5 points)

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