What discovery about the ocean floor is associated with the seafloor spreading? A. Mountains are denser than the mantle B. The rotational poles of the Earth have migrated C. The crust of the Oceans is denser than the crust in the continent.
A
C
B
Which plate boundary is formed between the Nazca Plate and the South American Plate?
Convergent
Transform fault
Divergent
Subduction
Seismic waves are generated primarily by:
Meteorite impacts
Volcanic eruptions
Landslides
Earthquakes
The waves whose motion is a combination of longitudinal compression and dilation that results in an elliptical motion of points on the surface.
Rayleigh waves
P waves
S waves
Love waves
Which type of seismic waves cannot travel through liquids?
P waves
Love waves
Rayleigh waves
S waves
How many recording stations are needed in triangulation method?
3
2
1
4
Which of the following is the correct composition of the Earth’s layers according to physical properties?
Crust, Mantle, Core
Lithosphere Core Mesosphere Mantle
Lithosphere, Crust, Mantle, Core
Lithosphere, Asthenosphere, Mesosphere, Cores
Which of the following types of seismic waves is the fastest and the first to arrive at a seismograph station after an earthquake?
P waves
Rayleigh waves
S waves
Love waves
The most visible and fascinating evidence that continents were once a single land mass that their borders seem to fit together.
Paleontological Evidences
Stratigraphic Correlation
Continental Jigsaw Puzzle/Tectonic Fit
Topographic Evidences
Which type of crust is less dense?
Both oceanic and continental have the same density
Continental
Niether oceanic and continental
Oceanic
In which layer of Earth's interior do S-waves disappear?
Inner core
Crust
Outer core
Mantle
In a hotspot volcano, Volcano A is on top of the mantle plume, Volcano B is 10 km farther from A while Volcano C is the farthest. What can you infer about the ages of the volcanoes?
Volcano A is older than Volcano C
Volcano B is the youngest
Volcano B is the oldest
Volcano B is younger than Volcano C
Seismic waves that move in a back-and-forth, side-to-side motion are known as:
P waves
Rayleigh waves
S waves
Love waves
Which type of seismic waves travel through the interior of the earth?
Continental waves
Surface waves
Body waves
Oceanic waves
Plates A and B are moving away at 1.5cm each year. What type of plate boundary do these plates demonstrate?
None of these
Transform fault boundary
Convergent boundary
Divergent boundary
What is the driving fore behind plate tectonics?
Convergence
Wegener effect
Convection current
Subduction
Which type of seismic waves have a rolling motion similar to ocean waves?
Love waves
Rayleigh waves
S waves
P waves
It measures the strength of shaking produced by an earthquake at a certain location and a subjective measure of the effects of earthquake on people, structures, and environment.
power
energy
magnitude
intensity
What is the basis of scientists in dividing the Earth’s lithosphere into plates?
Location of active volcanoes
Location of active volcanoes and earthquake epicenters
Location of mountain ranges
Location of oceans and mountains
Which of the following plate movements is the cause of the formation of the Philippine islands?
oceanic-continental convergence
oceanic-continental divergence
continental-continental convergence
oceanic-oceanic convergence
Which of the following geologic activities does not include among the bases of scientists in dividing Earth’s lithosphere?
tsunamis
formation of mountains
volcanism
seismicity
Plates A and B are moving apart at 1.5cm each year. What type of plate boundary do these plates demonstrate?
Convergent Boundary
None of these
Transform Fault Boundary
Divergent Boundary
Why are there no P-waves or S-waves received in the P-wave shadow zone as seismic waves travel through the Earth?
P-waves are absorbed and S-waves are refracted by the Earth’
P-waves and S-waves are refracted by the Earth’s outer core.
P-waves are refracted, and S-waves are absorbed by the Earth
. P-waves and S-waves are absorbed by the Earth’s outer core
There are seven relatively large plates in the world. Which of the following does NOT belong to those plates?
African Plate
Eurasian Plate
Philippine Plate
Australian Plate
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