Multiple Choice
How is Biosphere 2 useful today?
A) People still live in the manmade biosphere.
B) Farmers use it to graze cattle.
C) It allows scientists to study the consequences of high CO₂ levels.
D) Biosphere 2 no longer exists.
E) It is used as training for astronauts.
Correct Answer:
Verified
Correct Answer:
Verified
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