1.In a heavy snow year that sees an expansion of the zone of accumulation, what
ID: 119104 • Letter: 1
Question
1.In a heavy snow year that sees an expansion of the zone of accumulation, what happens to the line of equilibrium?
It increases in elevation.
It retreats away from the toe.
It remains constant.
It decreases in elevation.
It retreats uphill.
2.All of the following are glacial terrain features except _____.
cirques
tarns
fjords
v-shaped valleys
arêtes
3.The pile of sediment deposited at the terminus (toe) of a glacier is called:
surface load
lateral moraine
drumlin
end moraine
dropstone
It increases in elevation.
It retreats away from the toe.
It remains constant.
It decreases in elevation.
It retreats uphill.
Explanation / Answer
1. Question: In a heavy snow year that sees an expansion of the zone of accumulation, what happens to the line of equilibrium?
Answer: B. It retreats away from the toe.
Explanation: Line of equilibrium is the boundary between the zone of accumulation and the zone of ablation. During heavy snowfall, the equilibrium line moves down the valley. Basically glaciers cannot flow uphill, but the toe does advance and retreat.
2. Question: All of the following are glacial terrain features except ___?
Answer: [D] V--shaped valleys
Explanation: All the below mentioned features are glacial terrain features except V shaped valleys because majority of features formed by valley glaciers do include U-shaped valley but not V--shaped.
3. Question: The pile of sediment deposited at the terminus (toe) of a glacier is called?
Answer: B. Lateral Moraine
Explanation: Moraines are usually deposited along edge of glacier during melting and terminal is the very end of glacier. Lateral moraine forms along the sides of a glacier and the material is deposited at the terminus of Glacier.
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