Question

which of the following is not a physical change? select the correct answer below: copper wire is coiled into a spring food coloring is added to water you blow dry your hair fireworks are set off

Explanation:

A physical change is a change in which the substance's chemical composition remains the same. Coiling copper wire, adding food - coloring to water, and blow - drying hair are physical changes as they don't change the chemical nature of the substances involved. Setting off fireworks involves a chemical reaction that changes the chemical composition of the explosive materials.

Answer:

fireworks are set off