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A Facebook advertisement shows a before and after picture of a man that lost 15 pounds on a new diet. Four students ponder where his weight went... which student has the best reason for where most of his mass went?a. Jacob: "It was changed into energy."b. Emmie: "It was lost in the water of his urine."c. Vanessa: "He breathed it out."d. Savannah: "It was converted to heat as he exercised."

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