Why the water after the wastewater treatment process can't be drunk? ¿Por qué el agua después del proceso de tratamiento de aguas residuales no se puede beber?

well schools are being forced to embrace computers. unlike their "digital immigrant" teachers, these students are "digital natives", born into a world where technology is an integral part of everyday life. almost every student has access to a multitude of computers, laptops and tablet devices. it would be crazy to assume an assignment would  not be written on computer in this day and age.

don't delete this trying to