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The overgrowth of plankton and algae threaten the existence of______.

A. seaweed
B. sandstone
C. coral reefs
D. undersea caves ​

User Martijno
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2 Answers

1 vote

Answer:

It can kill coal reefs and make many fish loose their homes.

Step-by-step explanation:

User Manish Nautiyal
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2 votes

Answer:

c

Step-by-step explanation:

User Tsukasa
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