Answer: Renewable resources can be replenished over relatively short time spans such as months, years, or decades, whereas nonrenewable resources continue to be formed in Earth, but the processes that create them are so slow that significant deposits take millions of years to accumulate.
Explanation:
Renewable resources are defined as resources which are capable of restoring themselves overtime through natural process. They never get exhausted completely.For example: bio mass energy, solar energy etc.
Non-Renewable resources are defined as the resources that can be replenished overtime through natural process but takes million of years. These are the resources which are used in wise manner so that to prevent their exhaustion. For example: coal, petroleum etc.