Coral reefs are not related to freshwater, so A is incorrect. Coral reefs are under threat from increasing ocean temperature and decreasing pH due to ocean acidification, making B the correct answer. C is incorrect as coral reefs are still facing challenges to recovery, and D is also incorrect as it includes an incorrect answer. E is also incorrect as B is the correct answer.

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Coral Reefs

Question 63

Multiple Choice

Coral reefs

A) provide habitat for many freshwater species.
B) are threatened by decreasing ocean pH and increasing ocean temperature.
C) are projected to recover in 50% of their natural range by 2010.
D) all of the above answers.
E) none of these answers.

Correct Answer: