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Coral reefs are endangered due to rising global temperatures, pollution and overfishing. It is estimated that about 1/5 of all coral reefs on the planet have been destroyed. The re...

coral reef
a reef composed mainly of coral and other organic matter of which parts have solidified into limestone.
Source: Dictionary.com

Coral reef


Coral reefs are diverse underwater ecosystems held together by calcium carbonate structures secreted by corals. Coral reefs are built by colonies of tiny animals ...

They are usually either connected to the mainland or very close to the shore, separated by a semi-enclosed lagoon where deeper water lies. Pesticides also make their way into the sea through crop field runoff, which increases the amount of nitrogen in the sea, causing ... More »
By Matt Rosenberg, About.com Guide

Corals and Coral Reefs | Smithsonian Ocean Portal


Coral reefs are the most diverse of all marine ecosystems. They teem with life, with perhaps one quarter of all ocean species depending on reefs for food and ...

NOAA CoRIS - What are Coral Reefs


Dec 16, 2014 ... What are Coral Reefs. Appearing as solitary forms in the fossil record more than 400 million years ago, corals are extremely ancient animals ...

Coral Reef | Basic Facts About Coral Reefs | Defenders of Wildlife


Coral reefs are some of the most diverse ecosystems in the world, housing tens of thousands of marine species. About one-third of all marine fish species live ...

Coral Reefs - MarineBio.org


Coral reefs are a precious resource in the ocean because of their beauty and biodiversity. Coral reefs provide shelter for a wide variety of marine life, they ...

Coral reefs | WWF


Coral reefs are home to 25% of all marine life on the planet. In fact the variety of life supported by coral reefs rivals that of the tropical forests of the Amazon or ...

coral reefs | Define coral reefs at Dictionary.com
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Popular Q&A
Q: How to Help the Coral Reefs
A: Ask your school's science teacher for help. Most likely they are aware of the situation and will gladly give you information or help you with a project. Some ma... Read More »
Source: www.ehow.com
Q: How to Restore Coral Reefs.
A: 1. Volunteer with an organization such as the Reef Ball Foundation, Coral Cay Conservation, the Earth Watch Institute, Reef Relief and the Reef Doctor. These lo... Read More »
Source: www.ehow.com
Q: How to Draw a Coral Reef.
A: Questions and Answers. A coral reef is a complex underwater structure that gives shelter to a multitude of aquatic live. It's an ever-expanding ecosystem that i... Read More »
Source: www.wikihow.com
Q: How to Protect Coral Reefs.
A: Three Parts: Being a Responsible Tourist. Reducing Environmental Damage. Helping Educate People about Coral Reefs. Questions and Answers. Coral reefs are unique... Read More »
Source: www.wikihow.com
Q: Where are earths coral reefs?
A: austrailia. Read More »
Source: wiki.answers.com