Which of the following is a physical change? adding an acid to milk to form sour cream adding enzymes to milk to form cheese adding bacteria to heated milk to form yogurt adding sugar to milk to form sweetened milk

Physical changes are changes affecting the form of a chemical substance, but not its chemical composition. Physical changes are used to separate mixtures into their component compounds, but can not usually be used to separate compounds into chemical elements or simpler compounds.

d

Explanation:

the solar system used to have much dust particles option no d