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All statements are correct. A volcano is a conduit for magma to reach the surface. This process typically forms a circular, funnel-shaped mountain or hill around the vent. Furthermore, they are scientifically categorized based on their eruption history into three ...
Volcanoes are often called the ‘safety valve of nature’ because they allow the immense heat and pressure accumulating within the Earth’s interior to escape. Without these vents, the internal pressure generated by molten magma and gases could potentially lead to ...
Discovered by Danish seismologist Inge Lehmann in 1936, this discontinuity is the boundary between the liquid outer core and the solid inner core. She proved the inner core’s existence by showing that P-waves were being reflected and refracted by a ...
Megathrust earthquakes are the planet’s most powerful seismic events, occurring only at subduction zones. They happen at the interface where an oceanic plate is forced under a continental or another oceanic plate. These quakes are the only ones capable of ...
Charles Richter developed his scale using the maximum amplitude (height) of the largest wave recorded on a Wood-Anderson torsion seismograph. It was originally designed only for shallow earthquakes in Southern California, using a base-10 logarithmic calculation to handle the wide ...
