What is most likely to occur when humans use a natural resource, such as coal, without considering long-term consequences?
humans will discover a substitute resource to use.
the resource will run out before it can be renewed.
the resource will replenish itself before it is fully consumed.
humans will learn to make an artificial version of the resource.

The resource will run out before it can be renewed

Explanation:

When it comes to the natural resources that are considered as nonrenewable, such as the coal, the main problem is that they will run out eventually. The coal is natural resources that is forming in a natural manner, but the problem is that it takes special conditions and tens, or even hundreds of millions of years for the coal to actually form. This raises a big concern, as the demand and usage of coal is constantly on the rise, as it is producing a lot of energy, so the economies are driven by it, but it can not renew itself quickly enough so that the reserves are stable. Instead, the coal is used so much, that the actually renew of it comes to be almost at zero point. On the long run, this will cause total depletion of the coal reserves, and once they are gone, if there isn't a replacement found for it, lot of economies will crumble.