The basic structure of a volcano consists of a magma chamber, central vent and crater. Other elements are: pipe, side vent and lava flow.
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The correct answer is definitely D.
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The answer to this question is tides
The answer is c. on the earth’s surface directly above the initial release of seismic energy.
The definition of an epicentre: the point on the earth's surface directly above the origin of an earthquake (Cambridge Dictionary)
In Geology, we said that it is directly above the focus, which is the initial release of seismic energy mentioned in the above sentence.
As the other options do not have the correct location (e.g. within the Earth's surface, beneath the focus).
Therefore, the answer is c. on the earth’s surface directly above the initial release of seismic energy.
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