Why are coral reefs important to humans?, What do you think the author's purpose was for writing this book? , Coral reefs are fragile. Is this statement a fact or an opinion? How do you know?, Are tsunamis or humans more dangerous to coral reefs? Why do you think that?, What is the difference between stony corals and soft corals?, What is the main idea of the section "Protecting Coral Reefs?" What are the three details that support the main idea??.

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