Published on in “World”, language — English. 49 pages.
Participants: Students from Collège Visitation - La Berlière de Lessines, Lessines BELGIUM, 1ο ΓΕΛ ΓΙΑΝΝΙΤΣΩΝ, Giannitsa GRECIA, College of Ecology, Chișinau, REPUBLIC OF MOLDOVA, Liceum Ogólnokształcące im.Stefana Czarnieckiego, Nisko POLONIA More