On the Average,how Long Does a Spin Flip of Earth's

question 557

Multiple Choice

On the average,how long does a spin flip of Earth's magnetic field require? That is,how long is required to flip the field from one direction to the other?

• A) a few thousand years
• B) a few hundred thousand years
• C) a few million years
• D) forever. As far as we know, Earth's magnetic field has always pointed in the same direction.

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Definitions:

Social Loafing

The occurrence where people put in less effort towards achieving a goal while working as part of a group compared to when they work by themselves.

Group Performance

The effectiveness and outcomes achieved through the collective actions of a group of individuals working towards common objectives.

Process Loss

The inefficiencies that occur during group processes that lead to lower effectiveness or productivity than could be achieved by individuals working separately.

Disjunctive Task

A group task that can be completed if any one group member solves the problem; the group's performance is determined by its strongest member.