The nutrients were all beingput back into the same system
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The nutrients were all being
put back into the same system
put back into the same system
Full Transcript
00:00:01.000 --> 00:00:04.437
The nutrients were all being
put back into the same system.
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Movie Summary
A look at the group of people who built the Biosphere 2, a giant replica of the earth's ecosystem, in 1991.
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