'Reef system' presentation slideshows

The Great Barrier Reef

The Great Barrier Reef. http://www.youtube.com/watch?v=kRoC3yKVGCk. The Great Barrier Reef is one of the seven wonders of the natural world. It is larger than the Great Wall of China and the only living thing on earth visible from space. Where Is The Great Barrier Reef ?.

1.99k views • 31 slides

The Mesoamerican Reef

The Mesoamerican Reef. And its severe threats. By:Christopher Godoy. The Reef. The world second largest coral reef. Largest reef system in the Western Hemisphere. About 225 million years old. The reef acts as a natural barrier for storms and hurricanes.

347 views • 12 slides

Australian landmarks

329 views • 8 slides