Oceans

Coral reef means what as it relates to the environment?

More Questions from Oceans
Which ocean lies between North America and Europe?
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What type of algae live symbiotically with coral reefs in shallow waters?
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Which fish helps balance the algae and coral on a reef?
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Which ocean surrounds Africa on the east side?
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In the 1970's, a large and failed expansion to Florida's Osborne Reef was comprised mostly of what?
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The pool at the foot of a small water-fall in a river is called what?
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What do you call the area of land that lies next to an ocean?
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Which of these natural resources would you not expect to find in an ocean?
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