Question

draw a line ab and take a point p outside it draw another line CD parallel to ab which passes through the point p​

Answer 1

$\sf\pink{♡AnswEr♡}$

The essential component for rusting is the contact of metal with oxygen and moisture. When the iron gate is painted, it protects the iron to get in contact with oxygen, hence prevents it from rusting.

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$\sf\red{ElegantIshika \ :) ♡}$