Describe the difference between renewable and nonrenewable resources, and provide examples of each and their impact on sustainability.

• A. Renewable resources replenish naturally (solar, wind, geothermal); nonrenewable resources are finite (fossil fuels, minerals); sustainability concerns include depletion and environmental costs.
• B. Renewable resources are finite; nonrenewable resources replenish quickly.
• C. Renewable resources are limited to water resources only.
• D. Renewable resources cause more environmental damage than nonrenewables.

Answer: (A)

Renewable resources differ from nonrenewable ones by whether they can be replenished naturally within a human lifetime and how that affects long‑term use. Renewable resources replenish on relatively short timescales, so they can be used repeatedly without running out if managed well. Solar, wind, and geothermal energy are classic examples, along with sustainably managed water and biomass. Because they can be renewed, they generally support ongoing availability and tend to have lower environmental costs per unit of energy, though they can come with issues like intermittency and specific environmental impacts from production or land use.

Nonrenewable resources are finite and form over millions of years, so once they’re extracted and consumed, they’re not readily replenished for human timescales. Fossil fuels and many minerals illustrate this category. Their finite nature means supplies can become scarce or expensive, and extracting and burning them often incurs significant environmental costs, including pollution and climate change. This is why sustainability focuses on reducing dependence on nonrenewables, improving efficiency, and shifting toward renewable energy sources.

The statement that renewable resources replenish naturally, nonrenewable resources are finite, and sustainability concerns involve depletion and environmental costs captures the essential distinction and its implications for how we plan for a sustainable future.