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The undulating form that gives Earth's surface its character and general configurations is called
The eventual catastrophic eruption of Mount Saint Helens was
related to seafloor subduction at the west coast of North America
Pulvarized rock and clastic materials ejected violently during an eruption are called
tephra, or pyroclastic
A hypsographic curve
is a generalized curve showing Earth's surface by area and elevation in relation to sea level
The variety of surface features on Earth results from
gravity, tectonic activity, and weathering and erosion
The nucleus of old crystalline rock in each of the principal continental masses is called a
continental shield, or craton
Which of the following is correct regarding magma formed along a continental oceanic boundary?
The magma results in more violent volcanic eruptions than magma derived directly from the aesthenosphere. The magma has a higher silica content than magma formed from only oceanic crust. Batholiths may form from the rising magma.
High mountains consisting of tightly folded and overthrust sedimentary rock layers, as well as metamorphic rocks, are formed
during plate collisions
Which of the following can lead to the formation of mountains?
faulting, plate collisions and volcanic activity and exposure of plutons by erosion of surrounding landscape
When rock strata are strained beyond their ability to remain an intact unit, displacement occurs in a process known as
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