珊瑚礁的简单英文介绍200字以下为好

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珊瑚礁的简单英文介绍200字以下为好
珊瑚礁的简单英文介绍
200字以下为好

珊瑚礁的简单英文介绍200字以下为好
Coral reef enjoying "the tropical rainforest Ocean" and "sea wall" good reputation,was considered the most ancient on Earth.The most exciting and also the most valuable ecological systems in the world.During the course of 2.5 billion years of evolution of coral maintain a tenacious vitality of both storms.volcanic eruption or sea-level changes are not allowed coral extinction.Coral reefs are formed Reef and other biological material accumulated over a long period of the formation of calcium deposition in the reef,Coral reefs from the calcareous remains and the calcareous algae piled up from a reef.

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