Why metals often lose their shine and appear dull?❌No Spam❌

1.	Why metals often lose their shine and appear dull?❌No Spam❌
Answer» the effect of AIR and MOISTURE. Metals like IRON, ALLUMINIUM etc. reacts with moist air and get oxidised and they lose their shine.

Answer»

the effect of AIR and MOISTURE. Metals like IRON, ALLUMINIUM etc. reacts with moist air and get oxidised and they lose their shine.

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