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How do tiny coral polyps form the physical structure of a massive reef?
A
They extract calcium phosphate from seawater to build a hard inner skeleton.
B
They extract calcium carbonate from seawater to build a hard outer skeleton.
C
They extract sodium chloride from seawater to build a hard inner shell.
D
They extract silicon dioxide from seawater to build a hard outer shell.
Card 1 of 21
Distribution of coral reefs Flashcards
21 flashcards on OCR A GCSE Geography Distribution of coral reefs: the key terms, case studies and geographical processes you need to recall for Component 01, Component 02 and Component 03.