Earth Science: 8C Practice Quiz

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1.
5 points
Which of the following are considered volcanic intrusions?
2.
5 points
Minerals which settle or precipitate out when the water cools often produce stepped rock formations called
3.
5 points
Batholiths and laccoliths are both types of
4.
5 points
The internal energy of the earth is called geothermal energy.
5.
5 points
The continuous cycle of cooler water sinking by means of gravity into geothermally heated rocks and causing the hotter, less dense water to rise nearer to the surface, then lose heat to the cooler rocks is referred to as the __________________.
6.
5 points
The term _____________ gradient refers to the way the temperature within the earth increases continuously with its depth.
7.
5 points
Plutons that seem to have formed from blobs of magma collected at the tops of deep dikes and then cooled to form a dome-shape are called
8.
5 points
Geyser water is heated by magma.
9.
5 points
Hot groundwater is very effective at dissolving minerals in the rocks that it flows through. The hot water cools when it reaches the surface, causing the minerals to _____________.
10.
5 points
Geothermal energy has become a major source of electricity in the United States.
11.
5 points
Igneous features made by intrustive volcanism never appear above land.
12.
5 points
A spring that periodically ejects large quantities of hot water and steam is known as a
13.
5 points
A hydrothermal circuit is best seen in
14.
5 points
________________ are places where heated groundwater quietly rises to the surface and either flows away from the source or simply evaporates.
15.
5 points
Rocks that are affected by heat and pressure change into other kinds of rocks through a process called metamorphism due to igneous intrusions.
16.
5 points
Vertical is to dike as horizontal is to ________.
17.
5 points
In places where there are thick deposits of fine volcanic tephra form bubbling springs called
18.
5 points
Diapirs are lower-density, rising blobs of magma that are believed to be the cause of pluton formation.
19.
5 points
Both sills and dikes can vary in size from just a few centimeters thick to many meters thick.
20.
5 points
According to the ______-earth view, the earth's internal heat is partly caused by leftover heat from its molten formation, but it is mostly due to the radioactive decay of elements in its interior.