The correct option is A True
The old, dilapidated mobile phone you replaced with a snazzy, up-to-date version was disposed of properly at the company’s collection centre. You think it has been discarded in an environmentally friendly way. But often that does not happen. Worse, it can contribute to the losses the country makes on account of electronic waste, or e-waste.
Mobile phones have precious metals such as gold, silver and palladium; special metals such as cobalt, indium and antimony; and metals such as copper and tin. So, the correct answer is "True".