Final answer:
A nonrenewable source cannot be easily replaced and can be used up, while a renewable source can be replenished by natural processes and is not depleted by consumption. Examples of nonrenewable sources include fossil fuels and nuclear power, while examples of renewable sources include wind, water, geothermal, and solar power.
Step-by-step explanation:
A nonrenewable source is different from a renewable source in that a nonrenewable source cannot be replaced as easily as it is consumed, whereas a renewable source is replenished by ongoing natural processes. Nonrenewable sources, such as fossil fuels and nuclear power, exist in fixed amounts and can be used up. Examples of nonrenewable sources include petroleum, coal, and natural gas. On the other hand, renewable sources, such as wind, water, geothermal, and solar power, can be replaced by natural processes as quickly as humans use them. These sources are not depleted by consumption over human time scales.