Вулканы—этомощныеприродныеявления,которыеформируютландшафтивлияютнаэкосистемывокруг.YSL水蜜桃满十八岁

　　Field shots present a picture of a volcanic eruption. Animated diagrams tell about the structure of the volcano and the mechanism of the eruption, and animated maps - about the geographical distribution of volcanoes. The film also shows the volcanoes of Kamchatka, the Hawaiian Islands, the island of Anak (“the son of Krakatoa”), which arose as a result of an underwater eruption... (展开全部)