Which of these metals forms 'patina' on exposure to moist air for a long time?
Correct answer: Copper
Player #43943536
Very interesting, I like how much diferent things you can learn in this game. Good work!
Greygranite
the statue of liberty must've looked amazing when it was new!
Dd1
it turns green an example in Dublin.
The Rotunda Hospital and Rathmines clock.
Lionessa
There is a house in my neighborhood that has a copper roof. Right now, it's still copper color, and it is beautiful. A copper roof will last 70-100 years, is resistant to pests, mold, and fungi, and is virtually maintenance free.
Dorothy
It seems like I have learned about this some time ago.