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Not at all. Many rivers have their sources in springs, lakes, or simply from rainfall.
The effects of the mountain glaciers on Canada included beautiful formation of distinctive features such as cirques, icebergs, and deep gorges.
A glacier can become many miles in width.
A crevasse is a large fissure, or crack, in something although it is usually applied to a glacier.
Yes, for over thousands of years snow, ice and glaciers have been slowly moving. In the process they make a deep valley or gorge from all the erosion.
fjord
Carved deep U-shaped valleys distinguish fjord glaciers. The valleys also extend below sea level and are flooded by the ocean.
Not at all. Many rivers have their sources in springs, lakes, or simply from rainfall.
The glaciers and the erosion. It is glaciers and erosion because as glaciers move, they smoothed the rough surfaces, carved deep valleys, and piled up rocks and dirt. In some places, glaciers left behind rich oil. Erosion is the process by which water and wind wear away land. Flowing water can even carve a path through stones over a long period. Overtime, the soil carried by rivers can fill valleys and create plains. Wind causes erosion as it blows bits of stone and earth from the surface of landforms. The combined of wind and water have carved natural bridges, steep cliffs, and deep valleys.
Fjord
Canyon
A deep ditch carved over time by running water is called a ravine.
A fjord is formed by glaciers that moved toward the sea during the ice age. They dug deep valleys into granite and now they are filled with water. Fjords can be found in Norway.
Canyon or a Gorge
A canion.
I only know that alpine glaciers can carve deep u-shaped valleys in the mountains.
lake sebago is <2000 metres deep.