Renewable energy is generated from natural resources like sunlight, wind, rain, tides, and geothermal heat that are constantly replenished. Non-renewable energy comes from finite resources like fossil fuels that will run out over time. The document defines renewable energy as coming from natural sources that replenish, such as the sun, wind, water, and heat below the Earth's surface. Non-renewable resources are those that do not replenish, such as coal, oil, and natural gas.

2. Renewable energy is energy generated from natural resources—such as sunlight, wind, rain, tides, and geothermal heat—which are naturally replenished Non-renewable energy is energy, taken from "finite resources that will eventually run out. Fossil fuels are an example of this.