Correct answer is a) Seafloor fracture zones are associated with frequent earthquakes.
Explanation:
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Earthquakes are a phenomenon characterized by a movement of the earth's crust in the form of waves, which is produced by the release of energy that derives from the encounter between two moving tectonic plates.
Earthquakes are commonly located in areas where these movements occur between plates, which are called geological faults. In this way, the faults appear as a deformation of the earth's crust that ends in a fracture.
The zones located between two plates, frequently produce seismic activity.
C) Shallow-focus earthquakes are associated with divergent and transform boundaries; convergent plate boundaries also produce deep earthquakes.
Explanation:
Earthquakes tend to be weak and shallow at divergent plate boundaries. Transform boundaries, have shallow, but very strong earthquakes. At convergent plate boundaries, where two continental plates collide earthquakes are deep and also very strong.
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