The example of only a physical change is dry ice becoming vapor. This process is known as sublimation, where dry ice (solid carbon dioxide) turns directly into gas without passing through a liquid state, and does not alter the chemical composition of the substance.
The other options involve chemical changes or reactions. For example, the creation of table salt involves the chemical reaction between sodium and chlorine, and the smell of rotten eggs is due to chemical changes in the eggs. The green color of the Statue of Liberty results from a chemical change in the copper due to oxidation.