Why is the statue of liberty green?

The Statue of Liberty is green because of staying in the water for 25 days. From the copper, the water and bacteria cluttered its way to the metallic/ steel statue.

Explanation:

answer; /// i believe the correct answer is (when one group has an extremely high score at pretest;

in 342 bc j._c. egypt fell into the hands of the persians, under the reign of nectanebo ii

greek city-states unite in a revolt against the persian empire at the beginning of the fifth century bc. j.-c  

from the year 660 or 659 bc ad, cyrus preached the revolt against the medes to deliver the persians.