8. Emily is decorating her room and wants to hang up some pictures using metal nails. She is worried about the nails rusting over time. What can Emily do to prevent the nails from rusting? A. Paint the nails with a waterproof sealant B. Keep the room temperature low to slow down the rusting process C. Use plastic nails instead of metal nails D. Nothing, as rusting is inevitable for metal nails
Answer (1)
Painting the nails is the best solution.Rusting happens when metal reacts with water and oxygen. A waterproof sealant works like a protective layer that prevents water and air from reaching the metal surface. This stops rust from forming.
