How did ancient people move into North America and into Texas? A migrating from Canada
B westward expansion of the east coast Native Americans
C by crossing the Bering Strait from Asia
D European exploration

this forms a narrow, steep sided inlet (sometimes deeper than 1300 metres) connected to the sea. the terminal moraine pushed down the valley by the glacier is left underwater at the fjord’s entrance, causing the water at the neck of the fjord to be shallower than the main body of the fjord behind it.