Final answer:
The two changes have in common the process of oxidation. Baking an apple pie involves the oxidation of sugars, leading to browning and flavor production. The green color on the copper statue is a result of the oxidation of copper.
Step-by-step explanation:
The two changes, baking an apple pie and a copper statue turning green, have in common the process of oxidation. In both cases, substances are undergoing oxidation reactions.
When baking an apple pie, the sugars in the apple react with oxygen in the air, leading to the browning of the pie crust and the production of flavors.
Similarly, the copper statue turning green is a result of the oxidation of copper. Copper metal slowly undergoes oxidation from the air, leading to the formation of a green patina.