Final answer:
Renewable energy sources include sunlight, wind, water, geothermal, and biomass, which can naturally replenish. Nonrenewable resources, such as coal, oil, and natural gas, are finite and decline with use. Understanding the distinction is key for sustainable energy use and environmental conservation.
Step-by-step explanation:
Energy sources are either renewable or nonrenewable. Renewable energy sources are those that can replenish themselves and are sustainable for future generations. Examples include sunlight, wind, geothermal, water, and biomass. On the other hand, nonrenewable resources are those that exist in fixed amounts and are depleted by consumption; they cannot renew themselves on a human timescale. Fossil fuels such as coal, oil, and natural gas are classic examples of nonrenewable resources.
The differentiation between these two types of resources is crucial for ensuring long-term energy sustainability. As renewable resources can naturally replenish themselves, they play a critical role in reducing our environmental impact and mitigating issues like global warming. However, today a significant portion of the world's energy still comes from nonrenewable resources, highlighting the need for a transition towards more sustainable options.