What Event Led to the Demotion of Pluto from Planet

question 3

Multiple Choice

What event led to the demotion of Pluto from planet to dwarf planet?

• A)The determination of Pluto's mass
• B)The discovery of Mercury
• C)The discovery of a tenth body that is larger than Pluto
• D)The discovery of additional satellites of Pluto

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Definitions:

Dopamine

A neurotransmitter involved in many brain functions, including reward and motivation, motor control, and the regulation of mood.

Rebound Insomnia

A condition where difficulty sleeping reoccurs or worsens after discontinuing sleeping pills, leading to temporary sleep disturbances.

REM Sleep

A phase of sleep characterized by rapid eye movements, dreaming, and increased brain activity, playing a critical role in memory consolidation and emotional regulation.

Addicted

A chronic condition characterized by compulsive engagement in rewarding stimuli, despite adverse consequences.