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Verbal·Craft and Structure·Words in Context
easy
Scientists studying marine ecosystems were surprised by the extent of internal carbon recycling by red coralline algae. While some        of carbon was expected, the scientists found that the algae reabsorb nearly 40% of the carbon dioxide they produce during calcification processes and harness it for photosynthesis.
Which choice completes the text with the most logical and precise word or phrase?
A
reuse
B
supply
C
imitation
D
examination