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What are polyps?
Polyps are tiny organisms that form the structure of coral reefs.
Things that are threatening the health of coral reefs are . . .
1). People catch too many reef fish and often damage the reefs. 2). Polluted water as a certain type of algae grows in dirty water. 3). Global warming
What is the main purpose of the article?
The main purpose of the article is to explain why coral reefs are important.
How coral reefs help protect coasts?
Coral reefs help protect coasts by slowing down waves.
What does the author say about the chemicals from reef creatures?
They help scientists create new medicines.
What does the helpful type of algae give corals?
The helpful type of algae gives corals their color.
A lake which is shallow is _____________ .
not deep
If something remains, it _______________.
continues to exist
Things that are popular are enjoyed by _______ people.
many
If something attracts people, it has features that cause people to ______________.
come to it
When you warn someone about something, you tell them that something _______ may happen.
bad
When you damage an object, you _______________ it.
break or destroy
