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How is a glacier formed and what does it do? ;) 0:00 what is glaciation 0:30 how glaciers are formed 1:30 the eternal snow line 3:52 mountain glaciers and ice sheets 5:03 glaciation in Poland 5:28 phases of glacier movements 6:02 transgression / glacier advance 6:10 glacier standstill / stagnation 6:30 glacier retreat / recession 6:55 glacials and interglacials - three glaciations in Poland 8:38 glacial activity 9:40 young-glacial relief and old-glacial relief 10:39 MORENA / what is a moraine 11:08 terminal moraine 13:15 sands 14:17 ice-marginal valley 15:06 erratic / erratic boulder 15:42 subglacial channel / channel lake 17:08 ground moraine 18:10 moraine lake 18:38 once again from a bird's eye view 19:17 terminal moraine 20:02 sands 20:42 proglacial stream valley 22:02 subglacial channel / channel lake 23:20 summary