Question time:
1. What are the properties of plastic according to the passage?
2. Why is recycling plastic particularly hard?
【参考答案】
1. it is durable, flexible, it does not shatter, it can breathe (or not) and it is extremely lightweight. Therefore, food and drink are protected from damage and kept for lengths of time previously unimaginable.
2. Because there are so many types and because it is difficult to remove contamination.
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