What does the phrase 'these effects' in paragraph 4 refer to?

Câu hỏi :

What does the phrase "these effects" in paragraph 4 refer  to?

A. ocean warming and ocean acidification

B. reef weakening and ocean warming

C. reef weakening and ocean acidification

D. ocean warming and CO2 absorb

* Đáp án

A

* Hướng dẫn giải

Dẫn chứng: ...ocean warming and also by ocean acidification, triggered as the seas absorb more and more carbon dioxide. These effects lead to ....

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