contestada

This is a tough one! This element helps hold your house together, by making sure
the nails don't rust

Respuesta :

Answer:

Zinc

explanation:

The iron or steel object is coated in a thin layer of zinc. This stops oxygen and water reaching the metal underneath - but the zinc also acts as a sacrificial metal . Zinc is more reactive than iron, so it oxidises in preference to the iron object.

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