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地球表面的2/3为海洋所覆盖,我们生存所需的氧70%由海洋提供,面对气候变化及其他威胁,我们该如何去保护海洋呢?做下面的测试去找找答案吧。1、珊瑚白化是指:A.专业的潜水员为游客清洗和漂白珊瑚礁。B.珊瑚虫排出藻类致使珊瑚礁变白的过程。C.年深日久珊瑚会掉
Two-thirds of the Earth’s surface is covered by oceans, and 70% of the oxygen we need to survive is supplied by the oceans. How can we protect the oceans in the face of climate change and other threats? Do the following tests to find the answer. 1. Coral bleaching means: A. professional divers cleaning and bleaching reefs for tourists. B. Coral excretion of algae causes coral reefs whitening process. C. coral long time will fall