Is the statue of liberty turning green because of acid rain physical or chemical?
1 answer
The statue of liberty turning green is a chemical reaction. The green color is caused by the oxidation of the copper in the statue, which forms a layer of copper carbonate known as patina. This process occurs over time due to exposure to air and moisture, rather than directly from acid rain. Acid rain can accelerate this process by speeding up the oxidation of the copper, but it is not the primary cause of the statue turning green.