Plastic plays an important role in our life because

•Plastic is light and strong. The weight of plastic is less when compared to that of metal.

•Plastic is very cheap. So, plastic bags and other plastic items have low cost.

•Plastic does not react with air and water, and so it does not corrode easily. Hence it is durable.

•Plastic can be remoulded into different shapes and sizes. It can be used for various purposes.