Why do metals lose the luster they possess after some time?

1.	Why do metals lose the luster they possess after some time?
Answer» Explanation: COPPER ornaments and OBJECTS lose their Lustre after some time due to corrosion that is when the METALS COME in contact with AIR and moisture n hence its layers gets removed one by one and hence it loses its lustre.

Answer»

Explanation:

COPPER ornaments and OBJECTS lose their Lustre after some time due to corrosion that is when the METALS COME in contact with AIR and moisture n hence its layers gets removed one by one and hence it loses its lustre.

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Why do metals lose the luster they possess after some time?

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