Q: The ability of corals to make their skeletons primarily depends on which one of the following factors?
(a)Temperature
(b)pH
(c)CO₂ concentration
(d)Salt concentration
Correct Answer: (b)
The correct answer is (b): pH. Subject: Geography | Sub-topic: Atmosphere & Climatology Note: This answer was determined through AI-based research. Verify against the official answer key when available.