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Q: Renewable energy comes from sources that are naturally _____. A: replenished Q: The largest renewable electricity sources today include solar, wind, and _____. A: hydropower Q: Solar photovoltaic cells convert sunlight directly into _____. A: electricity Q: Wind turbines generate electricity by converting the kinetic energy of moving _____. A: air Q: Declining solar-panel and battery costs are expected to accelerate renewable-energy _____. A: adoption Q: Energy storage helps balance renewable generation by saving surplus electricity for later _____. A: use Q: Lithium-ion batteries are commonly used for short-duration grid energy _____. A: storage Q: Green hydrogen is produced by splitting water with electricity from _____ sources. A: renewable Q: Smart grids use digital controls to match electricity supply with _____. A: demand Q: Expanded transmission networks can connect high-quality renewable resources to population _____. A: centers Q: Demand response improves grid flexibility by shifting electricity use away from peak _____. A: periods Q: Offshore wind farms can access stronger and more consistent winds than many _____ projects. A: onshore Q: Long-duration energy storage is designed to supply power for many hours or even _____. A: days Q: Perovskite-silicon tandem solar cells could exceed the efficiency limits of conventional silicon-only _____. A: cells Q: A renewable-dominated power system requires coordinated generation, storage, transmission, and demand-side _____. A: flexibility