What Did the Differing Paleomagnetic Records for Each Continent Show

question 64

Multiple Choice

What did the differing paleomagnetic records for each continent show?

• A) each continent had its own magnetic pole during successive geological periods
• B) that the magnetic poles for each continent had moved over geological time
• C) that the magnetic poles have remained in one location and each of the continents has moved
• D) that both the poles and the continents have moved over time
• E) none of these

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Definitions:

Production Possibilities Frontier

A curve depicting all maximum output possibilities for two goods, given a set of inputs, representing the trade-off between different choices in the allocation of resources.

Opportunity Cost

Giving up possible gains from several options by choosing a particular one.

Bowed Outward

A description of the shape of a curve on a graph, such as the production possibilities frontier, indicating increasing opportunity costs.

Opportunity Cost

The penalty of dismissing the closest superior alternative when engaging in the process of decision-making.