THE BLEACHING OF CORAL REEFS MENTIONED IN PARAGRAP...

19. The bleaching of coral reefs mentioned in paragraph 4 indicates

______________.

A. the water absorption of coral reefs

B. the quick growth of marine mammals

C. the blooming phase of sea weeds

D. the slow death of coral reefs

Mark the letter A, B, c or D to indicate the word whose underlined part differs

from the other three in pronunciation