Question

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

Answer 1

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 2

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