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Coral islands are made of

a. the remains of small marine organisms
b. volcanic magma and ash
c. worn down mountains
d. sand and rock​

User TomNorway
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2 Answers

2 votes

Answer:

the awnser is A. The remains of small marine organisms

Step-by-step explanation:

User Joe Miller
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2 votes

Answer:

A. The remains of small marine organisms

Step-by-step explanation:

Hope this was helpful !! :]

User Amaurea
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