Which of the following process undergo a chemical change. digestion of food, respiration, evaporation of water, burning of wood
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Answer:
Burning of wood
Explanation:
Burning of wood is a chemical change as new substances which cannot be changed back (e.g. carbon dioxide) are formed. For example, if wood is burned in a fireplace, there is not wood anymore but ash. Other examples include burning of a candle, rusting of iron, baking a cake, etc.
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