Next in line is Andrea Melgarejo from Paraguay. 21 years old Andrea stands tall at an astounding height of 180cm and is a student of medical and teaches science. “My environmental advocacy is the work I have done for my university, consisting in the chemical analysis of the water extracted from water wells located in rural houses in the interior of my country, teaching to the people, to boil the water extracted from those water wells where was detected fecal coliform”, describes Andrea.