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地理漫步·世界地理英语30篇(7)

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Coral Reefs Grow in Warm, Clear, Shallow Seas

Coral Reefs Grow in Warm, Clear, Shallow Seas

珊瑚礁生长于温暖清澈的浅海

  1. Coral polyps build hard skeletons from calcium carbonate in seawater.
  2. They need sunlight, so reefs grow only in shallow, clear water.
  3. Warm tropical seas between 20°C and 30°C support most reefs.
  4. Reefs protect coastlines by breaking strong wave energy.
  5. Fish, crabs, and sea turtles depend on reef structures for food and shelter.
  6. Pollution, warming seas, and acidification harm coral health.
  7. Some reefs recover if stressors like runoff or overfishing stop.
  8. Australia’s Great Barrier Reef stretches over 2,300 kilometers.
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