Ans. A renewable resource is a resource that can be replenished or replaced naturally within a relatively short period of time. Examples of renewable resources include sunlight, wind, water, and biomass. On the other hand, a non-renewable resource is a resource that cannot be replenished or replaced within a human lifespan, as it takes millions of years to form. Examples of non-renewable resources include fossil fuels (coal, oil, and natural gas) and minerals.