Question 5 Ablation of a glacier is more likely to occur at _____ elevations whe

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Question 5

Ablation of a glacier is more likely to occur at _____ elevations whereas accumulation is more likely to occur at _____ elevations.

Question 6

Cirques and horns are features associated with _____.

Question 7

In cross section, valleys carved by glaciers tend to be shaped like the letter _____, whereas unglaciated mountain valleys tend to be shaped like the letter _____ in cross section.

Question 8

Sediment deposited directly by glaciers are characterized by _____.

Question 9

What will happen to the land surface and lithosphere when the Greenland or Antarctic ice sheets melts?

Question 10

By increasing the overall reflectance of solar radiation (sunlight), the growth of ice sheets produces conditions that are _____ to their further advance, thus providing an example of _____ feedback.

Explanation / Answer

Ablation of a glacier is more likely to occur at lower elevations whereas accumulation is more likely to occur at higher elevations.

Question 6

Cirques and horns are features associated with mountain glaciation.

Question 7

In cross section, valleys carved by glaciers tend to be shaped like the letter V, whereas unglaciated mountain valleys tend to be shaped like the letter U in cross section.

Question 8

Sediment deposited directly by glaciers are characterized by an absence of sorting (various sizes).

Question 9

What will happen to the land surface and lithosphere when the Greenland or Antarctic ice sheets melts?

It will rise

Question 10

By increasing the overall reflectance of solar radiation (sunlight), the growth of ice sheets produces conditions that are favorable to their further advance, thus providing an example of positive feedback.

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