Playing a guitar. - a) Sound Energy, Cellphone - b) Light and Sound Energy, Singing - c) Sound Energy, Watching T.V. - d) Light and Sound Energy, Fire place. - e) Light and Thermic Energy, Light bulb - f) Light and Thermic Energy, Match - g) Light and Thermic Energy, Headlights. - h) Light Energy, Firetruck. - i) Sound and Light Energy, Fire camp - j) Heat and Light Energy,

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