Final answer:
Renewable energy programs involve sources that can be sustained indefinitely, such as solar energy, hydroelectric, wind, biomass, and geothermal. These sources are renewable alternatives due to their replenishable nature and sustainable use.
Explanation:
Renewable energy programs are energy sources that can be kept going for a long period of time or indefinitely and are replenished by nature, making their use sustainable without depletion. These sources, such as solar energy, hydroelectric, wind, biomass, and geothermal, are considered renewable alternatives due to their ability to be renewed as quickly as they are consumed. While renewable energy sources do not have no impact on the environment, they are much more environmentally friendly compared to non-renewable sources.
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