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around 1970 aroud 80 years ago from now go to the website below if u want to know more

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Q: When did coral reefs start to get endangered?
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Are coral reefs endangered?

yes coral reefs are very endangered and so are many of of the species that live in them


How do coral reefs start?

coral reefs start by the decomposition of organisms living under water.


How are coral reefs being endangered?

The way coral reefs are being endangered are by us. We keep on throwing waste on the beaches. The water washes up on shore. And the waste floats down to the coral reefs. And the fishes and species that live there are either eating it or living in it. If they eat it the chemicals in the waste can kill them! if they are living in them then the saltwater in the coral reefs since the water is so warm, it release the chemicals in the water and the water gets into the species gills and kills them. It is up to us to stop throwing or leaving waste on the beaches so the coral reefs aren't in dangered anymore. So that is how the caorl reefs are endangered.


What structures do coral colonies produce?

Coral Reefs


Are dolphins in the coral reefs?

no dolphins are not in coral reefs.


Is the orange clown fish endangered?

Yes it is. Because reefs and coral are being destroyed. Those are what the live in.


What coral reef is in California?

There are no coral reefs IN California


Where does the name coral reef come from?

The reason they are called Coral Reef is because there are lots of coral in those locations, and they are also called coral reefs or reefs of coral reefs of coral too.


Are coral reefs can be gas for ships?

are coral reefs can be gas of ships?


What is deterioration of coral reefs?

Coral reefs are being killed by pollutants.


What are natural threats to coral reefs?

Pollution is a natural threat to coral reefs.


Why are the coral reefs deteriorating?

Coral reefs are deteriorating mostly because of our pollution