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Fishes in aquarium
1. What will happen if we remove plants from the aquarium?
The production of and absorption of will be . Also, plants provide to fish and the algae growth.
2. What will happen if we remove the fish from the aquarium and keep it (with green plants) in a dark place?
Most of the fishes require . If the fishes are kept in a dark place for a long time, they might .
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