What Is the Relationship Between Plucking and Abrasion on a Glacially-Scoured

question 34

Multiple Choice

What is the relationship between plucking and abrasion on a glacially-scoured landscape?

• A) Plucking occurs relatively suddenly when a glacier first encounters the landscape, and then if it remains in place for a long time, abrasion begins to happen later, over a long period of time.
• B) Abrasion occurs relatively suddenly when a glacier first encounters the landscape, and then if it remains in place for a long time, plucking begins to happen later, over a long period of time.
• C) Plucking occurs on the upflow side of a mound or hill that is scoured, while abrasion occurs on the downflow side.
• D) Abrasion occurs on the upflow side of a mound or hill that is scoured, while plucking occurs on the downflow side.

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Definitions:

Natural Rate

The level of economic activity, particularly unemployment or interest rates, that corresponds to the economy's long-term equilibrium without short-term cyclical fluctuations.

Potential Output

Potential output is the maximum amount of goods and services an economy can produce when it is most efficient and fully employed, without causing inflation.

Expansionary Gap

A situation where real GDP exceeds potential GDP, often leading to inflationary pressures due to high demand in an economy.

Equilibrium Output

The level of output where the quantity of goods and services produced equals the quantity of goods and services demanded.