What Causes the Velocity of a P-Wave to Slow Down

question 2

Multiple Choice

What causes the velocity of a P-wave to slow down when it enters the outer core?

• A) The outer core is a much more dense material than the mantle.
• B) The outer core is a much less dense material than the mantle.
• C) The outer core is liquid, and thus the wave slows down.
• D) The P-wave no longer has to compete with the S-wave for energy.

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Definitions:

Contingent

Depending on certain conditions or circumstances.

Unilateral

Pertaining to an action or decision made by one party without agreement or consultation with others.

Executory

Pertaining to a contract or deal that has not yet been completed or fully executed by all parties involved.

Bilateral

Relating to agreements or actions involving two sides, parties, or countries, where each has obligations or considerations towards the other.