Question

fossil fuels: formation and types
why are fossil fuels considered nonrenewable?
we are using them slower than they can reform
we are using them faster than they can reform

Explanation:

Fossil fuels (like coal, oil, gas) form over millions of years from organic matter. A nonrenewable resource is one that is consumed faster than it can be naturally replenished. Since human consumption of fossil fuels is much quicker than the geological processes that create them (their "reformation" takes eons), they are nonrenewable. So the correct reasoning is that we use them faster than they can reform.

Answer:

We are using them FASTER than they can reform