Question

What has occurred?
The Statue of Liberty is made out of copper and was
once shiny and copper-colored. Over the years, the
copper has gone through a process called oxidation,
where it has changed into a new material.
O an endothermic reaction
O an energy formation
O a chemical reaction
O a precipitate formation​

Answer 1

Answer:

correct answer

Explanation:

an endothermic reaction is the correct answer

Answer 2

Answer:

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Explanation: