The Statue of Liberty is made of copper that has turned green because it has undergone a change. What can be said about this change?
O The change is a physical change because the copper in the statue is still there.
O The change is a physical change because a new chemical is formed on the outside of the statue.
O The change is not a physical change because the color of the statue has changed.
O The change is not a physical change because a new chemical is formed on the outside of the statue.