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Many years ago waste or trash had just been tossed out of living areas. In cities human waste was just thrown onto the streets or outside their house’s gates. As the population grew in the cities, illnesses spread and mankind realized that throwing waste into...

Definition Plastic is a synthetic material made from a wide range of organic polymers such as polyethylene, PVC, nylon, etc., that can be molded into shape while soft, and then set into a rigid or slightly elastic form. The relatively low density of most plastic...