Question

How corrosion can be avoided?

Answer 1

we can prevent corrosion by

1)electroplating
2)painting
3)applying zinc coating (galvanization)
4)by not letting the metal indo moisture
5)anodising

Answer 2

HELLO FRIENDS,
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Corrosion can be avoided by :-
1)Painting the metal 
2)electroplating the metal
3)coating iron with zinc
4)Anodization
5)prevention from moisture
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Best of luck ;)
ROYALJATT