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Coral reefs and hydrothermal vents are similar because they both lie below the under water.
Most of the reef building corals and animals on a reef are dependant on high amounts of sunlight; thus coral reefs are restricted to the tropics where sunlight is abundant. There are deep water sponge reefs in temperate and artic regions, but they are much different from coral reefs.
Shallow tropical regions along the equator.
tropical or sub-tropical waters & coral reefs
Coral Reefs
no dolphins are not in coral reefs.
There are no coral reefs IN California
The most biodiverse regions on earth are rainforests and coral reefs. ^^
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.
Coral reefs are being killed by pollutants.
are coral reefs can be gas of ships?
Pollution is a natural threat to coral reefs.