Plastics are manufactured from petroleum products, and may produce different colors in order to have a clear, strong, or weak, and also melting into different shapes by using pressure and heat, and the properties of the plastic is not decomposed.The benefits of plastic is lightweight and makes easy to carry and transport always considered until there is durable for a long time, and because a very usable, so replace the plastic.However, even though the plastic is useful, but it has the disadvantage of plastic is produced from natural resources that cannot be happening again, such as oil, coal, Moreover, they are difficult to recycle and reuse the media free of charge, and more importantly, because there are many kinds of plastic. To bring new production will have to separate each type of plastic from plastic bags are just the same current that can be used. But plastic bags are used, only 3 per cent of the total number of plastic bags manufactured only by bringing back into the factory for recycling.Therefore, the plastics that are currently so litter remains in the environment for a long time to count hundreds of years old.
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