Biosphere II

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A man‐made, closed ecological system that was constructed in the Arizona desert between 1987 and 1989, in which experiments were conducted to study how ecosystems operate and to evaluate whether people could live and work in a closed biosphere (for example during colonization of other planets). It involved artificially recreating a range of habitats under a geodesic glass dome, using nearly 4000 natural species representing tropical rainforest, saltmarsh, desert, coral reef, savanna, and intensive agriculture. Eight humans were part of the experiment, and they lived on a self‐sufficient basis inside the sealed dome for two years, effectively isolated from the outside world. The dome was self‐contained and self‐sufficient, except for some electricity fed in from outside.

Subjects: Environmental Science.

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