What is renewable and non- renewable energy??​

Those thing which can be renewed or replaced shortly after it is exhausted at its place of origin is called renewable energy

Those think which cannot be replaced shortly after it is exhausted at its place of origin is called no renewable energy.

renewable energy means those who doesn't finish over a long period of time and never finish. but non renewable energy means those who finished one day.

alchemy hadn't scientific methods of study, appeal to mysticism and fantasy, the knowledge of chemistry and physics were modest at that time.

alchemy was - but as new rules were discovered it either changed into chemistry or it became "unscientific".