The Core-Mantle Boundary Was First Discovered When Seismologists Noticed A(n)________

question 19

Multiple Choice

The core-mantle boundary was first discovered when seismologists noticed a(n) ________ on the opposite side of Earth.

• A)seismic discontinuity
• B)low velocity zone
• C)S-wave shadow
• D)P-wave shadow

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Definitions:

Reasonable Doubt

The standard of proof required in criminal cases for a jury or judge to legally find the defendant guilty; doubt based on reason and common sense.

Securities Laws

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Securities Act

A law aimed at regulating the offer and sale of securities to protect investors from fraud.

Securities Exchange Act

A federal law governing the trading of securities, such as stocks and bonds, to protect investors against malpractices.