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What is biosphere 1, and I want more than just the earth. quote unquote. that was my teachers words for a question can any of you help please?

YOU need to give it some thought (your assignment). When many people think of "earth" they think only that it refers to the physical structure of a planet. What is it about "earth" that would lead us to call it "biosphere 1"? What part of your answer might involve things outside of or beyond the earth? -Marshman

Shouldn't the Eden Project have a mention in here?

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