The resources which does  not get exhausted after large exploitation is called Exhausted Natural Resources. As for example, solar energy, water tides and winds. The solar energy is a never ending resources and it will exist as long as there is sun. Air is the free gift of nature but it is polluted by many water factors. The solar  energy, air and water are free gifts bestowed by the nature. Flowing water is also an exhausted natural resource. Electricity that can be obtained from water is also perpetual resources if we can have water properly.

Back