If energy never ends then why do we have exaustable sources of energy.?

Question

Answer

Energy can neither be created nor destroyed, but it does change its form. And not all forms of energy are usable and it gets dissipated as heat energy and ...

Answer

When use energy in usable form we convert the form of energy and got our work done during the processes we cannot reverse  the change involved in this process so we cannot get back the original useabler form of energy due to this it becomes important to think about energy crisis

Answer

Here , the statement is not completely correct as we know there are many types of resources but the main ones i.e mother of all resources are renewable and non renewable resources and in which renewable are ones discussed in the Q above but non renewable resources are those which occur over a long geological time and takes millions of years in the formation and gets exhausted along with their use they can't be retained the are needed to be reproduced which takes long time period therefore all the resources available to us weather renewable or non renewable should be used wisely .

Answer

Yeah there is a point in ur ques. but i also don't know the exact reason behind this...

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