What’s happens when a substance undergoes a physical change? Which one is it A. B. C. D

 A physical change is when a substance undergoes a process whereby its physical features change but its chemical features stay the same. A chemical change is when an object undergoes a process whereby its chemical composition changes. "A"

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the colonists were also expected to pay a tax to meet the costs of establishing and manning the borders of the proclamation line which led to the belief that the king had sided with the indians despite pontiac's rebellion, against the interests of the settlers. this contributed to the causes of the american revolution.