Physics · Chemical and Physical Changes
Which of the following statements is true regarding physical and chemical changes?
- 1Digestion of food in humans is an example of a chemical change.✓
- 2The stretching of a rubber band is an example of a chemical change.
- 3The burning of a substance is an example of a physical change.
- 4Rusting of iron is an example of a physical change.
Correct answer
Digestion of food in humans is an example of a chemical change.
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