Answer: discovery with a new way to reuse the resource.
Step-by-step explanation:
A non- renewable resource is the one which cannot be reused or replenished after single consumption. These resources are limited in availability on earth. For example fossil fuels.
So as to make them sustainably available for the future generation the discovery of ways through which these resources can be used again are required to be searched. This will help in resource conservation for fullfilling the demands for the future as well as for the present human population.