1) what two main types of energy does this item give out?  a) light b) heat c) moving d) sound 2) what two main types of energy does this item give out?  a) light b) sound c) heat d) electrical 3) what main type of energy does this item give out?  a) light b) sound c) heat d) electrical 4) what main type of energy does this item give out?  a) light b) heat c) moving d) sound

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