Answered: Why are coral reefs biologically…

Applications and Investigations in Earth Science (9th Edition)

9th Edition

ISBN:9780134746241

Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Chapter1: The Study Of Minerals

Section: Chapter Questions

Problem 1LR

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Why are coral reefs biologically valuable? How are they being degraded by human
impact? What is causing the disappearance of mangrove forests and salt marshes?

Describe 3 benefits and 3 costs of damming rivers.
What are the costs and benefits of building levees?

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Coral reefs are very much diversified in nature and one of the most important ecosystems of our Earth. They are home to about 4000 species of fish and hundreds of other species of plants and animals among a plethora of undiscovered ones.

This biodiversity can be very valuable to pharmaceutical industries and human lives as new medicines for various life threatening diseases like cancer, bacterial infections, Alzheimer's disease etc. are prepared from various reef animals and plants.
Coral reefs attract tourists and recreational activities which in turn support businesses and employment and promote healthy lives of many.
Coral reefs act as natural barrier from waves and violent storms and protect coastal communities, save lives.
Coral reefs are good source for many essential nutrients like nitrogen, phosphorus and sustain marine food chains. Besides they also help in nitrogen and carbon fixing.
In deep ocean where there are less plants and oxygen content is lower than what is needed to survive for many species around, coral reefs provide oxygen and help them to live comfortably.