Answer:
Renewable energy is energy that is derived from naturally replenishing resources that can be used repeatedly, such as solar, wind, hydro, geothermal, and biomass. These energy sources are considered "renewable" because they are replenished naturally, either by the sun (in the case of solar), wind, water, or heat from the earth's interior. Unlike non-renewable energy sources like fossil fuels, renewable energy sources are generally considered to be sustainable and have a lower impact on the environment, as they produce little to no greenhouse gas emissions or other pollutants. Renewable energy technologies are used to generate electricity, heat, and fuel for transportation and industry, and are becoming increasingly cost-competitive with conventional energy sources.