|The resources which have been in use for a long time.||The resources which are yet in the process of development over the past few years.|
|These resources are exhaustible.||These resources are inexhaustible.|
|These resources cause pollution as they emit smoke and ash.||These resources are usually pollution free.|
|These resources are very expensive to be maintained, stored and transmitted.||These resources are less expensive due to local use and can easily be maintained.|
|Examples- coal, natural gas, petroleum, and water power.||Examples- solar, biomass, wind, bio gas, and tidal, geothermal.|
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