The Central Regions of Earth's Core Are Solid Because

question 52

Multiple Choice

The central regions of Earth's core are solid because

• A) the composition at the center of the core is lower in iron.
• B) the pressure at the center raises the melting point.
• C) the magnetic field cannot penetrate into the center of the core.
• D) convection does not extend all the way to the center of the core.
• E) Earth initially formed from solid particles in the solar nebula.

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Definitions:

Chemical Synapses

Sites where neurons communicate with each other or with effector organs through chemical messengers.

Electrical Synapses

Specialized junctions between cells that allow for the direct passage of ions and electrical signals, facilitating rapid communication.

Amine Neurotransmitters

Amine neurotransmitters are chemical messengers derived from amino acids that transmit nerve impulses across synapses, including serotonin, dopamine, and norepinephrine.

Sensory Synapses

The connection points between sensory neurons and their target cells, where the transmission of sensory information takes place.