SL/HL Topic D4.3 Climate change (id: f1ccb771f)

本题目来源于试卷: SL/HL Topic D4.3 Climate change，类别为 IB生物学

[单选题]
4. What causes decalcification of s (u+rekot -k5corals leadingu1 xuei.b v6h1 to collapse of coral ecosystemsu6v1u1bhxi.e ?

A. Coral bleaching.
B. Ocean acidification.
C. Global warming.
D. The El Nino effect.


参考答案:  B


本题详细解析: 暂无

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