UNIT 4

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1.Most parts of cell phones, computers, and other small gadgets have usually been recycled.i@@j
2.We can get precious metals like gold, silver, etc. by recycling e-waste.i@@j
3.E-waste laws have prevented the urban mining industry from growing.i@@j 
4.China, as the worldfs largest supplier of rare earth minerals, ensures a stable supply of these resources.i@@j
5.Urban mining has its own demerits such as high cost and toxic waste.i@@j