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Science chapter 21-22 test
Terms in this set (38)
What is the Earth's lithosphere composed of?
Crust and upper most mantle
One hypothesis states that plate movement results from convection currents in the __________?
A convergent boundary occurs where two plates _______
move toward each other
a transform fault boundary occurs where two plates
move past each other
What does a seismograph measure?
how much the surface of Earth moves during an earthquake
The magnitude of earthquakes is expressed using
Where do most earthquakes occur?
The location of earth's surface where most earthquake damage occurs is called the _____
Where do volcanoes tend to form?
convergent and divergent plate boundaries and hot spots
What determines the severity of volcanic eruptions
composition of magma
An igneous rock forms when molten rock
cools, hardens, and crystallizes
What transforms sedimentary rocks into metamorphic rocks
heat and pressure
a zone where oceanic crust dives beneath continental crust is called a zone of ______
A divergent boundary occurs where two plates _____
move away from each other
The breakage of rocks along a fault line releases energy in the form of
Rocks that are changed by heat and pressure will form ______ rocks
The type of rock formed as molten rock cools and hardens is called ____ rocks
Coldest layer of the atmosphere
where does almost all weather occur
A cloud type that usually produces precipitation is a _____ cloud
the region where warm and cold air masses meet is called a ________
_____ clouds form at various altitudes, from 500 m to 12 km
clouds that are layered and sheet-like are ______
A frontal boundary is established between air masses of different ______
The cloud that occurs at the highest altitude are usually ________ clouds
Tornadoes commonly occur in which of the following regions of the United States?
Which cloud type is typically associated with thunderstorms
The _______ is a part of earth that consists of seven large and several small tectonic plates
What is a crack along which rocks move past each other
what is an area where tectonic plates move apart, forming mid-oceanic ridges
a theory stating that Earth's surface consists of large moving plates
what kind of geological features form at subduction zones
mountains, volcanoes, and trenches
an elastic wave in the earth produced by an earthquake or other means.
what is one cause of earthquakes
plates scraping across each other
the measure of the amount of water vapor present in the air compared to the amount needed for saturation at a specific point
a mobile destructive vortex of violent winds
what occurs when a warm front meets a cold front
tornadoes, storms, and rain
What are the three main types of clouds
cirrus, cumulus, stratus
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