Digestion is a chemical or physical change.
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Mechanical digestion occurs in the mouth, stomach, and small intestine. Food is chemically changed in digestion when new, smaller substances are formed. These chemical changes are examples of chemical digestion. Chemical digestion begins in the mouth when enzymes in saliva begin to break down carbohydrates.
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DIGESTION IS A CHEMICAL CHANGE.
It changes the large Macro-nutrients into simpler molecules so that body can digest it easily.
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