As we watch the video, Coral Reefs: Rainforests of the sea, answer the following questions:

1: What percentage of the oceans is covered by coral reefs?

2: Approximately how long ago did the first ancestors of coral reefs appear?

3: What is the skeleton of hard coral, such as brain coral, made out of?

4: In what way are soft coral different from hard coral?

5: What conditions are ideal for the growth of coral reefs?

6: Why are predators, such as sharks, dependent on coral reefs?

7: Why is tourism important to the communities living near coral reefs?

8:Describe one way to decrease the rate at which coral reefs are being destroyed by humans.

9: Why are coral reefs good indicators of the health of the environment?