日本財団 図書館


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to two main groups, that are renewable and non renewable resources.

A renewable resource exists on a continual basis whether it is used or not. This resource can supply productive inputs to an economic system indefinitely. A non renewable natural resource is one with a finite stock. This resource cannot be renewed or reproduced, once use up is gone.

Meanwhile, natural resources can also be classified according to its

 

 

 

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