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monkeybee765 monkeybee765
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6 years ago
Coral reefs are made of:
 a. volcanic rock.
  b. metamorphic rock.
  c. gravel-sized marine sediments.
  d. seaweed.
  e. limestone skeletons of tiny marine animals.
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mojin39mojin39
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6 years ago
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monkeybee765 Author
wrote...

6 years ago
Brilliant
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Yesterday
Thank you, thank you, thank you!
ky
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2 hours ago
Good timing, thanks!
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