Which of the following is considered a physical change? burning paper rusting of metal evaporating water

When paper burns, some of the chemical compounds in the

paper combine with oxygen in the air and become different

chemical compounds. That's a chemical change.

When iron rusts, or copper or silver turns green, that's the result

of the metal at the surface combining with the oxygen in the air and

forming a new chemical compound. Those are chemical changes.

When water evaporates, H₂O in the liquid phase gains thermal

energy and changes to H₂O in the gaseous phase. No chemical

compounds are lost, gained, or changed to other compounds.

It's just a physical change.