Complete the following sentence. Galvanising is a method of __________ prevention.

Galvanising is a method of corrosion prevention.

Galvanising involves applying a protective zinc coating to steel or iron to prevent rusting. This process typically includes hot-dip galvanisation, where the metal is submerged in molten zinc, forming a durable, adherent layer of zinc that acts as a barrier to moisture and air.

This barrier protects the underlying metal from environmental factors that cause corrosion. Additionally, zinc has galvanic properties, which means it can offer some degree of protection through a mechanism known as cathodic protection; even if the coating is scratched or damaged, the zinc will corrode preferentially, thus preserving the integrity of the steel beneath.

Therefore, galvanising is an effective and widely used method for prolonging the life of metallic structures and components exposed to outdoor environments.