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How many recording stations are needed in triangulation method?
3
Which type of crust is less dense?
Continental Crust
What is the basis of scientists in dividing the Earth’s lithosphere into plates?
Location of active volcanoes, earthquake epicenters, and mountain ranges
What makes up the lithosphere?
Crust and upper mantle
What type of rock forms the oceanic crust?
Basalt
What do you call to the outermost rigid layer of the Earth?
Lithosphere
What do you call to the soft, weak upper portion of the mantle?
Asthenosphere
Which theory suggests that the crust is made of plates that interact in various ways?
Plate Tectonics Theory
What do you call to the force that drives the plates to move around?
Convection Current
Which type of wave travels fastest to reach the recording station?
P-wave
Which waves can travel through solid part of the earth only?
S-wave
Which type of waves is the slowest?
Surface wave
Which layer of the Earth is responsible for the Earth's magnetic field?
Outer Core
Which layer of the Earth is made up of solid iron and nickel?
Inner Core
What do you call to the location where two plates meet?
Plate Boundaries
Which is largest among the 7 major plates of the world?
Pacific Plate
