Which of the following describes a till plain?
1 )
A continental size mass of ice that is dome-shaped with flows of ice radiating from the centre.
2 )
A steep-sided ridge of unsorted material stretching across a glacial valley at right angles to the direction of ice advance.
3 )
A swarm of streamlined elongated ‘whale back’ hills often found on glaciated lowland plains.
A thick covering of unsorted glacial deposits found behind a terminal moraine.
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