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The Importance of Oxygen
The Importance of Oxygen

... serves to retain a sufficiently larger amount of heat then would naturally be retained. .A major issue which is causing concern is that of our own health. Throughout the world, the occurrence of particular diseases and other threats to human health depend largely on the local climate. For example: ...
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Freshwater environmental quality parameters

Freshwater environmental quality parameters are the natural and man-made chemical, biological and microbiological characteristics of rivers, lakes and ground-waters, the ways they are measured and the ways that they change. The values or concentrations attributed to such parameters can be used to describe the pollution status of an environment, its biotic status or to predict the likelihood or otherwise of a particular organisms being present. Monitoring of environmental quality parameters is a key activity in managing the environment, restoring polluted environments and anticipating the effects of man-made changes on the environment.
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