People plant a great number of young trees in the mountains.When the trees grow big and tall enough, they are cut down by workers and carried out of the mountains to the paper mill where fine paper is made from wood.Then it is taken to every corner of the country and used for differe...
A polar bear weighs a ton, so the plastic we need every month weighs as much as 1,500 polar bears.When doing this, the company can save 20% of water. Now DGrade also makes cups and bags out of recycled plastic bottles. These things are very good and popular. The company makes a ...
A. New plastic bottles. B. Post-consumer plastic bottles. C. Natural fibers. D. Synthetic fibers. 相关知识点: 试题来源: 解析 B。解析:“Recycled polyester, on the other hand, is made from post-consumer plastic bottles”,再生聚酯是由消费后的塑料瓶制成的。反馈...
Waste plastic tends to have a bad smell. Most recycled plastic packaging, such as hdpe, pp, pvc, and pet, will be washed in aqueous solution to remove contaminants. But the odor absorbed inside the plastic will still remain. Organic solvent extraction helps remove odorous compounds. A new so...
Upcycling is catching on in Hong Kong.Many upcycled products can now be found more easily than ever.Here are two examples of local upeyclers. Making music When Kevin saw how many plastic bottles were being thrown away,he thought of a useful way they could be reused.His invention,called "...
Only about 30 percent of PET bottles are recycled. Some are incinerated, but most end up in landfills, where decomposing can take up to 400 years. In the interim, poisonous ingredients may leak into waterways or release greenhouse gases into the atmosphere. ...
Air pillows are small bags that can be inflated, so they consist mainly of air. This cuts down on the plastic used in their production and transport compared to other cushioning materials. While they can be reused and recycled, it’s important to choose versions made from 100% recycled and...
While the body of plastic bottles consumes most of our attention, the small caps which keep their contents secure are sometimes neglected. These items are made of a harder and less pliable plastic than the bottles themselves, which makes them suitable for creating other items. These...
This STEM project not only promotes scientific thinking and technical skills but also encourages creativity and resourcefulness. The use of recycled materials, such as plastic bottles and old toys teaches children the importance of reus...
Upcycled vs Recycled To better understand upcycling, it’s essential to distinguish it from recycling: Recycling Recycling involves breaking down used materials into their base components (like plastic bottles into plastic pellets) and then using those components to create new products. While recycling ...