Explain how and why electronic waste (e-waste) has become a growing solid waste problem. Phytovolatization: Phytovolatization is a process that utilizes plants having the potential ability to take up heavy metals from contaminated soil or water and release them into the at...
There's just one slight difficulty: your toilet doesn't actually dispose of sewage: it just washes the problem down a long smelly pipe so it ends up somewhere else—and it uses lots of water in the process. Even in the world's richest and most sophisticated countries, sewage disposal is...