Amazon Quiz (March 28, 2022): Why did this statue turn green in colour?

Oxidisation

Carbonisation

Pollution

Acid Rain

Answer: Oxidisation

The Statue of Liberty has had a changing face since its completion in 1886.

At the time of its completion, the brand new copper panels that make up the statue shined like a brand new penny, but today, the statue appears green-ish in colour.

The reason behind the statue’s changing colour over the centuries is a chemical process known as oxidation.

According to AccuWeather Meteorologist Brett Rossio, “When the air and moisture interact with the copper plating on the Statue of Liberty, a copper carbonate known as patina forms on the surface of the copper plating. ” This coating of patina protects the deeper layers of copper from weathering, Rossio explained.

“This is why statues are frequently made with copper or brass, due to its inherent durable nature when oxidation occurs. This oxidation actually turned the Statue of Liberty the greenish/blue colour that we see today. It was actually once brown in colour when it was gifted to us in 1885 by the French,” Rossio added, summing up how the Statue of Liberty changed over the centuries.

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