� The planet urgently needsto study biospheres
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� The planet urgently needs
to study biospheres
to study biospheres
Full Transcript
00:00:01.000 --> 00:00:05.504
‐ The planet urgently needs
to study biospheres.
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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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