20. 다음 글의 내용과 일치하지 않는 것은?

Carbonate sands, which accumulate over thousands of years from the breakdown of coral and other reef organisms, are the building material for the frameworks of coral reefs. But these sands are sensitive to the chemical make-up of sea water. As oceans absorb carbon dioxide, they acidify―and at a certain point, carbonate sands simply start to dissolve. The world’s oceans have absorbed around one-third of human-emitted carbon dioxide. The rate at which the sands dissolve was strongly related to the acidity of the overlying seawater, and was ten times more sensitive than coral growth to ocean acidification. In other words, ocean acidification will impact the dissolution of coral reef sands more than the growth of corals. This probably reflects the corals’ ability to modify their environment and partially adjust to ocean acidification, whereas the dissolution of sands is a geochemical process that cannot adapt.

• 1
   The frameworks of coral reefs are made of carbonate sands.
• 2
   Corals are capable of partially adjusting to ocean acidification.
• 3
   Human-emitted carbon dioxide has contributed to the world’s ocean acidification.
• 4
   Ocean acidification affects the growth of corals more than the dissolution of coral reef sands.