ahlam1399
04-26-2017, 02:01 AM
More than a trillion plastic bags are used annually. They're made of a **toriously resilient kind of plastic called polyethylene ? but scientists have found that wax worms are able to break them down.
أكثر... (http://www.npr.org/sections/thetwo-way/2017/04/25/525447206/a-worm-may-hold-the-key-to-biodegrading-plastic?utm_medium=RSS&utm_campaign=news)
أكثر... (http://www.npr.org/sections/thetwo-way/2017/04/25/525447206/a-worm-may-hold-the-key-to-biodegrading-plastic?utm_medium=RSS&utm_campaign=news)