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The image below shows part of a rounded ridge formation called an esker. This esker extends for several miles in an area that is
mostly flat plains. At one time, this ridge shape was occupied by a stream that flowed underneath a large glacier
Which of the following describes how the esker most likely formed?
ОА
As the glacier receded, the sediments in the stream built up to result in the formation
Св.
The glacier eventually melted and the water eroded the areas on both sides of the ridge
C. As the glacier receded, tectonic forces formed volcanoes, which spewed lava and formed igneous rock
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