Question

A nonrenewable resource is defined as

Answer 1

Something you can't reuse once its all gone its gone.

(In some cases it takes a VERY long time to come back)

Answer 2

A nonrenewable resource is a resource of economic value that cannot be readily replaced by natural means on a level equal to its consumption. Most fossil fuels, such as oil, natural gas and coal are considered nonrenewable resources in that their use is not sustainable because their formation takes billions of years.