Geology HW 5 Complete Study Test with Complete Solutions.
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Module
Geology
Institution
Geology
Geology HW 5 Complete Study Test with Complete Solutions.
An active volcano is any volcano that:
has not been worn away by erosion.
is currently erupting or has erupted recently (in geological terms).
has not erupted recently (in geological terms) but is likely to erupt in the future...
geology hw 5 complete study test with complete sol
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Geology HW 5 Complete Study Test with Complete Solutions.
An active volcano is any volcano that: has not been worn away by erosion.
is currently erupting or has erupted recently (in geological terms).
has not erupted recently (in geological terms) but is likely to erupt in the future.
is located on an active tectonic plate boundary - CORRECT ANSWER B
If a volcano has not erupted in the past few thousand years, but is likely to erupt sometime in the future,
it is considered to be: active.
dormant.
extinct.
none of the above - CORRECT ANSWER B
All of the following events could indicate an impending eruption EXCEPT: discovery of new hot springs around the volcano
a measurable bulge or swelling of the volcano.
swarms of small earthquakes in the region. a highly eroded, volcanic peak. - CORRECT ANSWER D
The principal factor(s) influencing upward magma migration before cooling is (are): the magmatic water content. the magmatic gas content, combined with magma viscosity.
the climate and temperature regime that affects the land surrounding the volcano.
the time since the last eruption, combined with the density of the rocks overlying the volcano - CORRECT
ANSWER B
A volcano can spew several kinds of gases into the air, but most of the gas is: water vapor and carbon dioxide. nitrogen and sulfur dioxide. sulfur dioxide and chlorine. nitrogen and carbon dioxide. - CORRECT ANSWER A
The force that causes pyroclastic volcanoes to explode violently is: hot convection currents in the asthenosphere that push magma upward. density differences within the magma that force part of the magma upward
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