A viral video by Qiao, a professional refiner in Guangdong, China, shows him extracting 191g of gold worth ₹28 lakhs from two ...
E-waste, which refers to discarded electrical or electronic devices, is the fastest growing domestic waste stream in the world, and it is highly toxic, threatening public health. Much of this e-waste, ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results