Nonrenewable resources are things that can't be re -newed.
For example: Coal takes thousands, even millions of years to form.
Once coal, or any nonrenewable item is used up they will be gone for millions of years.
That being said, nonrenewable items are basically limited.
Also, nonrenewable resources are made naturally, not made by man.
Here are some examples of nonrenewable resources:
1) Fossil Fuels.
2) Natural gas.