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Earthquakes sometimes called monstrous waves called _______
tsunamis
A break that appears at the boundary between two moving masses of rock is known as a _________
fault
The point underground where an earthquake begins is called the _________
focus
The place at ground level that is directly above the focus of an earthquake is known as the ________
epicenter
Any trembling or shaking of the earth's crust is defined as an _________
earthquake
The strength of an earthquake is called its ________
magnitude
____________ occurs when natural acids slowly eat into rock, breaking it apart
Chemical weathering
The temperature of rocks _________ with depth
increases
The _______ is created when trapped gases blast through the earth's surface
vent
A ________ allows molten rock and hot gases to escape from within the earth
volcano
scientists who study the structure of the earth
geologists
the process by which new soil is formed as rocks crumble and break into smaller pieces
weathering
The boundary between earth's crust and its mantle
Moho
the underwater mountain ranges
mid-oceanic ridges
the study of earthquakes
seismology
a volcano that has been active at some time in recorded history, but has not had a recent eruption
dormant
