Question

why ships are painted at frequent intervals?

Answer 1

Ships are painted at frequent Intervals so that they are prevented from corrosion and rust. Ships are made up of metals which on coming in frequent contact with water get eroded

Answer 2

ships are painted at frequent intervals because of the salty sea water, the metal sheets of ship rust and corrode.Paints contain metals such as zinc and magnesium. This prevents the metal surface of the ship in coming in direct contact with salty sea water.