The Great Barrier Reef is the world's largest living structure. It is made up of around 2900 individual reefs and 900 islands. ... Climate change is perhaps the biggest threat to the Great Barrier Reef. Warmer ocean temperatures put stress on coral and lead to coral bleaching.
Answer:
B
Explanation:
These regions are very warm but less humid than other regions.
Yes because the Earth was one big ocean at one point
A. Clear Examples. The one on the top
