Early During Earth's History What Two Things Contributed Heat That

question 158

Multiple Choice

Early during Earth's history what two things contributed heat that led to the internal melting and formation of the core?

• A)a hotter proto-sun and the burning off of Earth's early hydrogen atmosphere
• B)tidal forces and friction between moving unconsolidated meteorite debris
• C)kinetic energy of impacts from nebular debris and decay of radioactive elements
• D)chemical reactions between early unstable elements

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Definitions:

Neural Transmission

The process by which neurons communicate with each other through synapses, using chemical or electrical signals.

Myelinated Axons

Axons that are coated with a protective layer of myelin, which helps to speed the transmission of electrical signals along the nerve cells.

Gray Matter

Gray matter and is a component of the brain and spinal cord, consisting of neuronal cell bodies, dendrites, and unmyelinated axons, playing a crucial role in processing information.

Refractory Period

The time after an action potential during which a neuron’s cell membrane is unprepared for the next action potential.