Pluto Was Originally Classified as a Planet, but New Criteria

question 39

Multiple Choice

Pluto was originally classified as a planet, but new criteria for the definition of a planet were adopted, and Pluto failed to meet one of them. Which one?

• A) Pluto does not orbit the Sun directly.
• B) Pluto does not have enough mass to pull itself into a roughly spherical shape.
• C) Pluto does not spin fast enough to produce its own magnetic field.
• D) Pluto does not have enough gravity to clear its orbit.

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Definitions:

Extrinsic Benefits

Advantages or rewards received from an activity that are external to the activity itself, such as money, grades, or recognition.

Self-Efficacy

An individual's belief in their own capability to execute behaviors necessary to produce specific performance attainments.

Job Security

The probability or likelihood that an individual will retain his or her job or employment position without involuntary separation.

Training Hours

The total time spent in training activities, usually measured in hours, aimed at skill improvement or acquisition.