Good morning, everyone. Today, in our marine biology lecture, we will discuss the impact of ocean acidification on coral reefs. As you know, increased carbon dioxide in the atmosphere is absorbed by the ocean, leading to a decrease in pH levels. This process, called ocean acidification, reduces the availability of carbonate ions, which are essential for corals to build their calcium carbonate skeletons. A recent study conducted by the University of Queensland monitored two reefs in the Great Barrier Reef over five years. The results showed that the reef with higher water circulation had a 30% slower rate of calcification compared to the more sheltered reef. However, the sheltered reef experienced a greater loss of biodiversity due to lower pH levels. So, while circulation can slow down structural damage, it does not prevent the overall ecological decline.
❓ 강의에 따르면, 퀸즐랜드 대학의 연구는 물 순환이 더 활발한 산호초에 대해 무엇을 발견했습니까?
A. A. 그것은 보호된 산호초보다 더 낮은 pH 수치를 가지고 있었다.
B. B. 산호의 석회화 속도는 보호된 산호초에 비해 30% 감소했습니다.
C. C. 그것은 더 큰 생물다양성 손실을 겪었다.
D. D. 구조적 손상의 징후를 보이지 않았다.
✅ 正确答案
B. Its calcification rate decreased by 30% compared to the sheltered reef.