While plastics can be recycled, less than 10 percent of all plastic products used in the United States are recycled. This is because we use many types of plastics that each have different chemical compositions. Mixing plastics can cause contamination, therefore making them unsafe to use again. Plastic waste can also be contaminated by other materials such as paper and ink. Select the word from the text that helps the reader understand the meaning of the word contamination as it is used in this text. Group of answer choices Compositions Materials Recycled Unsafe