Final answer:
Sacrificial protection, galvanising, and alloying are methods to prevent rust, while catalysing is not. Galvanising uses a zinc coating to prevent corrosion.
Explanation:
Sacrificial protection, galvanising, and alloying are methods used to prevent rust, whereas catalysing is not typically a method for rust prevention. Galvanising involves coating metal with zinc to protect it from corrosion.
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