Question

choose the correct answer which of these is a physical change? rust is formed on a nail in water an object is cut into pieces

Explanation:

A physical change is a change in which the substance's chemical composition remains the same. Rust formation on a nail is a chemical change as iron reacts with oxygen and water to form iron - oxide. Cutting an object into pieces only changes its physical shape and size, not its chemical composition.

Answer:

an object is cut into pieces