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Geologists have long recognized that earthquakes are not randomly distributed on Earth but occur in concentrated areas that coincide with plate boundaries and provide evidence for the theory of plate tectonic .
What is a tectonic plate?
Tectonic plates are the portion of earth crust and upper mantle and it is always in motion. They can be either portion of the land or the ocean floor.
What is an earthquake?
When these tectonic plates which are already in motion collide and slip on one another which causes release of energy in the form of seismic waves.
What is the theory of tectonic plates?
It states that the earth surface is divided into plates which are in motion above the molten mantle. These plates interact with each other over the plate boundaries and generally experience friction.
What are fault lines?
Fault lines are the portion of earth crust where this displacement takes place and hence is the major place where earthquakes are likely to happen. These occur mostly at plate boundaries.
How an earthquake is caused?
When the motion results in two tectonic plates slipping on each other there is a release of energy which travels in the form of seismic waves resulting in a violent movement of earth's surface.
Hence the correct option is option (b) plate boundaries; plate tectonics.
To learn more about earthquakes and tectonic plates here,
https://brainly.com/question/20918142
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