What I Have Learned Activity 1.2: Complete the sentence by filling in the blanks with the missing information. Write your answer in the blank. 1. Where did paper recycling begin first? 2. ______ is the practice of changing an item that has already served its original purpose but still lasts for a long time to come. What products can be made of waste tin cans? 3 ______ 4. ______ 5. ______ 6. ______ includes the use of materials which are manufacturing process waste products.
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