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A glacier is a piece of ice.
In the sense that it makes it known that the rock existed before a period of glaciation, yes.
Glaciers push huge amounts of sediments ( rock bits ) along the bottoms and sides of the ice.
It is called a glacial erratic.
You can tell if it's retreating if it slows it's speed in the glacier. You can tell if it's advancing if it increases in speed.
A glacier is a piece of ice.
Slowly and downward, since it is being pulled by gravity. You can tell the direction of its movement by the alignment of grooves in bedrock.
In the sense that it makes it known that the rock existed before a period of glaciation, yes.
It is called a glacial erratic.
Glaciers push huge amounts of sediments ( rock bits ) along the bottoms and sides of the ice.
the glacier deposits various rocks and sediment it displaced as it moved forward
Antarctica is a continent, not a glacier, and has only ever moved south.
ice chunks are left behind and theres valleys that the glacier created
You can tell if it's retreating if it slows it's speed in the glacier. You can tell if it's advancing if it increases in speed.
Drumlin
alignment of grooves in bedrock
how can you tell if someone has moved on