why are reef eco-system becoming fragile?
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Answer:
Despite their many strengths, coral reefs are fragile. These habitats are experiencing significant stress and decline as a result of human activity, rising water temperatures, increasing seawater acidity and pollution.
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Explanation:
Coral reefs are fragile because their environment requirements for survival are very limited. They grow in oligotrophic clear sea water and addition of nutrients/sediments leads to their degradation. In addition, the addition of sediments blocks the sunlight which is required for growth of some corals.
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