Question

e. What does the green coating as seen on copper or bronze objects consist of?​

Answer 1

Answer:

The green patina that forms naturally on copper and bronze, sometimes called verdigris, usually consists of varying mixtures of copper chlorides, sulfides, sulfates and carbonates, depending upon environmental conditions such as sulfur-containing acid rain.

Explanation:

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Answer 2

Answer:

I think that consists of chlorophyll .