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3 answers

biosphere (prefix bio gives it away)

2006-10-14 15:12:56 · answer #1 · answered by Spring is Awesome 1 · 0 0

Biosphere

2006-10-14 22:12:05 · answer #2 · answered by infernal_seamonkey 4 · 0 0

Usually a planet but I think all three are on the ISS.

2006-10-14 22:18:37 · answer #3 · answered by St N 7 · 0 0

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