Competition: BENEFITS AND RISKS OF VOLCANOES has been announced by Polish school The competition: BENEFITS AND RISKS OF VOLCANOES has been announced by Prywatne SalezjaĆskie Liceum from Wroclaw. It is open to secondary students from Poland. The deadline is 28.05.2017. Rules in Polish – [download] Poster – [download] Submit a Comment Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website