Multiple Choice
The Biosphere 2 project,in Tucson,Arizona,was an experiment involving a large sealed terrarium with humans and photosynthetic plants living in balance.Why did the project have to be interrupted after only a few months?
A) Levels of CO2 rose to dangerous levels.
B) The humans ran out of food.
C) The plants stopped producing oxygen.
D) The rate of photosynthesis was too high.
Correct Answer:
Verified
Correct Answer:
Verified
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