Question

in the modern era metal is replaced by plastics . explain​

Answer 1

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Even though metal-to-plastic conversion has been around since the 1950s, many manufacturers are still not familiar with all the benefits it provides. Automotive and aerospace companies have been most active in converting existing metal products or parts to plastic, driven by the need to reduce weight and improve fuel efficiency.

Answer 2

Answer:

The metals are known for their strength, ductility and there resistance to temperature but are more prone to getting oxidised and rusting while in case of plastic strength ductility and resistance to temperature are present and their also so when official as they don't get oxidized or don't rust.