Concept #3 Quiz

pick the best feasible answer to the complying with questions about key Concept 3 "Discovering Earth"s significant internal boundaries."
1.

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Which of the following finest characterizes exactly how the diameter the Earth’s core and also the nature of the external core were discovered?by evaluation of the P-wave and S-wave zero zones
by utilizing the ratio of stole meteorites to mantle-like meteorites to deduce the loved one diameters
crystalline steel was discovered in lavas erupted from hot spots
by the truth that P-wave speeds are greater in the outer core 보다 in the reduced mantle
2.What is a p or S tide “shadow zone” on the opposite side of the planet from one earthquake?
the region in i beg your pardon seismic station seismographs execute not obtain P or S tide arrivals
the region in which p waves are absorbed, yet S waves are enhanced, and seismographs room in error
the zone in i beg your pardon seismic station seismographs execute not obtain surface tide arrivals
the zone in which ns or S waves room enhanced, and also seismographs obtain a shadowing effect
3.Match the significant Earth boundary with the proper description: Using the pulldown boxes, match each item on the left to the corresponding item in ~ right.
A. The boundary in between the crust and mantle
B. The boundary in between the inner and outer core
C. Found using the 35-degree-wide P-wave zero zone
Choice AChoice BChoice C
the Lehmann Discontinuity
Choice AChoice BChoice Cthe Core-Mantle boundary
Choice AChoice BChoice Cthe Moho
4.Which of the following finest explains why over there is a P-wave “shadow zone” in between 105 and also 140 degrees?
P waves space reflected in ~ the boundary between the inner and also outer cores.
P waves space reflected native the inside core–outer main point boundary.
P-wave velocities are lower in the mantle 보다 in the crust.
P waves space refracted cross the mantle–outer main point boundary.
5.Which of the following facts about seismic waves is provided to analyze that the Earth’s external core is "liquid"?
S-waves carry out not travel v liquids
P-wave velocities are lower in the mantle 보다 the core
P-waves perform not travel through solids
P-waves space reflected native the boundary between the inner core and outer core
6.Match the letter ~ above the diagram through the ideal description:For each item below, use the pull-down food selection to select the letter the labels the correct component of the image.
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Choice AChoice BChoice CChoice D
zone that no directly-received ns waves
Choice AChoice BChoice CChoice DP-wave shadow zone
Choice AChoice BChoice CChoice Dzone of directly-received P and also S waves
Choice AChoice BChoice CChoice DS-wave shadow zone
7.Which is used as proof that the inner core is solid?
S waves space slower in the inside core than in the outer core.
S waves perform not pass directly through the core.
P waves are much faster in the inside core 보다 in the outer core.
S waves are concentrated at the center of the P-wave shadow zone.
8.If an earthquake epicenter is located at the Earth’s phibìc pole, i m sorry of the complying with is no true? choose all the apply.
The seismograms in ~ the south pole would certainly not record any type of S waves.
The seismograms in ~ the south pole would get S waves.
The seismograms at the southern pole would get P waves.
The seismograms at new York City would receive both P and also S waves.
The seismograms in ~ the south pole would certainly not record any kind of P waves.
9.

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Match the portrayed seismogram through the most likely place on earth that it to be recorded.For every item below, use the pull-down menu to pick the letter the labels the correct component of the image.
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