Answers

  • Brainly User
2015-06-02T13:50:38+05:30
1st  method is galvanization 

2nd  method is by painting the surface  
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2015-06-02T13:51:39+05:30
1. coating the iron surface with oil , grease or paint
2. depositing a layer of zinc on the iron surface . this process is called galvansation
3.forming alloys of iron
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