Final answer:
Coal deposit is an example of a nonrenewable resource because it takes millions of years to form and is being used up faster than it can be naturally replenished.
Step-by-step explanation:
An example of a nonrenewable resource is B) Coal deposit. Nonrenewable resources are those that exist in fixed amounts on Earth and cannot be easily replenished once consumed. Coal is a type of fossil fuel that formed from the remains of ancient plants over millions of years. Because the process of forming coal takes such a tremendously long time, we are using it at a rate much faster than it can be naturally replenished. This is in contrast to renewable resources like wind and hydroelectric power, which can be replenished naturally in a relatively short period of time, making them sustainable for continuous use.