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Câu 637: What is mentioned about aquaponics in paragraph 2 A. It requires large amounts of soil. B. It uses fish waste as plant nutrients. C...

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Câu 637:   

What is mentioned about aquaponics in paragraph 2

A. It requires large amounts of soil.  

B. It uses fish waste as plant nutrients.

C. It is unsuitable for urban environments.

D. It only grows fish, not plants.

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