Answers

2015-06-19T18:43:48+05:30
Potential which are found in a region but have not been yet utilized.
Developed which are surveyed and their quality and quantity has been determined for utilization.
Stock which have the potential to satisfy human needs but they don't have appropriate technology to access them.
Reserves can be put into use with the help of technical know-how but their use has not been started.
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