Question

If green plants are removed from an aquarium , the fishes will _____________.

• A. Die
• B. Increase in number
• C. Decrease in size
• D. Not be affected

Answer 1

Answer: (A)

Die

In an aquarium, green plants absorb or remove waste produced by fishes and provide useful substance to fishes. If all the green plants are removed from an aquarium, the waste released from fishes gets accumulated in a fish tank. This accumulation can cause bacterial growth and reduction of oxygen level. Finally, it causes the death of fishes.

So the correct answer is option A.