A Toaster, Electrical → Thermal, Person Running, Chemical → Mechanical, Candle Burning, Chemical → Thermal + Light , A Flashlight, Chemical → Light , Nuclear Power Plant, Nuclear → Electrical , Tree Growing Fruit, Light → Chemical , Solar Calculator, Light → Electrical , Fan, Electrical → Mechanical , Lamp, Electrical → Light + Thermal, Hydroelectric Plant, Mechanical → Electrical , Laptop, Chemical → Electrical + Light , Pencil Sharpener, Electrical → Mechanical + Sound.

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