Environment Chapter 17-24 – Flashcards

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A naturally occurring inorganic solid element or compound with
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mineral
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a structural unit that repeated in three dimensions is called a
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Crystal
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Which element is the most abundant in Earth's crust?
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Silicon
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Minerals are classified as
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silicates or nonsilicates
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the most abundant class of non silicates is the
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carbonates
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Silicates are classified into two groups based on the presence of
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Iron and magnesium
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the color of a mineral when is finely powdered is defined as the
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streak
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The hardness of a mineral is rated using the
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Mohs scale
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The ratio of the mineral's density to density of water is
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specific gravity
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Molten rock material from which mineral crystallize is called
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Magma
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An aggregation of one or more minerals that have been brought together into a cohesive solid is a
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rock
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Rocks that are formed from molten minerals are
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igneous
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Igneous rock that slowly cooled deep below Earth's crust is
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intrusive
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The rocks that make up the bulk of the Earth's Continents are
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Granite
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The rocks that make up the ocean basins and much of the Earth's interior are
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Basalt
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rocks that are formed from particles of other rocks or from dissolved materials from previously existing rocks are classified as
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Sedimentary
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Accumulation of silt, sand or other materials that settle out of the water are called
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sediments
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Limestone and dolomite are
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carbonates
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Heat and pressure change rocks into
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metamorphic rocks
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the relationship between rocks that are continually changing over long period of time is called
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Rock cycle
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The thin layer that covers Earth's surface is the
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crust
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Based of the abundance in Earth's Crust, must rocks wills contain mineral composed of oxygen and the element
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Silicon
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The most common rock in the Earth's crust is
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Igneous
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An intrusive igneous rock will have which type of texture?
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Coarse-grainded
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Which igneous rock would have the greatest density?
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Basalt
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Which of the following formed from previously existing rocks
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sedimentary rocks igneous rocks metamorphic rocks
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Sedimentary rocks are formed by the processes of compaction and
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cementation
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The greatest extent of metamorphic changes has occurred in
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Gneiss
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Which type of rock probably exist first, starting the rock cycle?
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Igneous
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Earth is unique because it has
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water covering most its surface
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The most common structural feature of all silicates is
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silicon-oxygen tetrahedral unit
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The one group that is not subgroup of the silicate minerals is
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plastic silicates
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the property that is not considered useful in identifying minerals is
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melting point
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the specific gravity of a mineral depends on the
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kind of atoms of which it is composed manner in which the atoms are packed in the crystal lattice
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Flourite is a mineral that floats in liquid mercury. The specific gravity of fluorite must be
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less than the specific gravity of mercury
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The group that is not a class of rocks is
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volcanic
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the classification of rocks is based on
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how they were formed
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An example of sedimentary rocks is
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shale
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the term that does not describe a size of clastic sediment is
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sandstone
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Dissolved rock materialsform
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Chemical sediments
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An example of metamorphic rock is
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marble
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Extrusive igneous rocks are formed on Earth's surface from
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Lava
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Foliation is found in
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Metamorphic rocks
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The core of the Earth is composed of
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Iron and nickel
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The middle part of the Earth's Interior is
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mantle
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the separation of materials that gave Earth its layered interior is called
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Differentiation
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The vibration that moves through any part of the Earth is called a
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seismic wave
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The S wave is a
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Transverse way
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Wave that occurs where S- or P-waves reach the surface are
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Surface waves
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The three main areas of the Earth's interior are
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Core, mantle, and Crust
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The boundary between the crust and the mantle is called
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Moho discontinuity
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The mantle is composed of
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Silicates
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Seismological studies suggests that the core
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has a liquid outer core and solid inner core
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Evidence from meteorite studies proposes that the core is composed of
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nickel and iron
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The layer in Earth where seismic waves sharply decrease in velocity is called
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Asthenosphere
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the layer that is broken up into plates that move in the upper mantle is
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Lithosphere
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The name of the single large continent suggested by Wegener is
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Pangaea
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Record of the strength and directions of earth's magnetic field are found in
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Igneous rock
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The chain of mountains found in the center of the Atlantic Ocean basin is called the
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Mid-Atlantic Ridge
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Long, deep, and narrow oceanic trenches are located
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parallel to the edges of continents
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The theory that the lithosphere is composed of several rigid plates that "float" in the atmosphere is called
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plate tectonics
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The plate boundary associated with the formation of the new crust is called
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divergent
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The movement of one plate under another plate creates a
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subduction zone
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Transform boundaries occur when
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two plates slide by each other without the formation of loss of crust
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What is the current theory about why the plates move?
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Convective cells move from the core to the lithosphere
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The seismic waves that cause the most damage during an earthquake are
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Surface waves
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Earth mantle has a chemical composition that agrees closely with the composition of
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basalt
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From seismological data, earth's shadow zone indicates that part of the Earth's interior must be
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liquid
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the Mohorovicic discontinuity is a change in seismic wave velocity that is believed to take place because of
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changes in the composition on both sides of the boundary
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The oldest rock are found in
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The continental crust
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The least dense rocks are found in
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Continental crust
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The idea of seafloor spreading along the Mid-Atlantic Ridge was supported by the evidence from
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changes in magnetic patterns and ages of rocks moving away from the ridge
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According to the plate tectonic theory, seafloor spreading take place at a
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Divergent boundary
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the presence of an oceanic trench, a chain of volcanic mountains along a continental edge, and deep-seated earthquakes is characteristic of a (an)
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Ocean-continent plate convergence
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The presence of an oceanic trench with shallow earthquakes an island arcs with deep seated earthquakes is a characteristic of a (an)
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Ocean-Ocean plate convergence
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the ongoing occurrence of earthquakes without seafloor spreading, oceanic trenches, or volcanoes is most characteristic of a
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Transform boundaries between plates
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The evidence that the earth's core is part liquid or act as a liquid comes from
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The S- wave shadow zone
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The surface of the early planets is our solar system were thought ti be formed from
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bombardment by dust and debris remaining from initial planet formation
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the early Earth's core is thought to have formed from the
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exterior melting from radioactive decay
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Indirect evidence that supports the theory of how Earth formed is not supported by the study of
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samples from Earth's core
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The oceanic crust
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thinner than the continental crust
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Seismic waves that do not travel through liquid are
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S-Waves
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The fastest seismic wave is the
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P-Wave
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Information about the composition and nature of the mantle does not come from
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samples obtained from drilling
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Primary information about the nature of the core is provided by
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seismological data
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the asthenosphere is not defined as
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rigid
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Earth's magnetic field is thought to be generated by
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electrical currents in the core
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studies of the Mid-Atlantic Ridge provided evidence of
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Seafloor spreading
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Evidence that support seafloor spreading does not include the
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younger sediments near the continents
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A geologic feature that was produced by divergent boundaries is
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the Mid-Atlantic Ridge
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Which type of plate boundary accounts for the formation of the Appalachian Mountains?
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Continental to continental convergence
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Which type of plate boundary was responsible for the formation of the Japanese Islands?
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Ocean to Ocean convergence
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A famous transform boundary in the United States is the
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San Andres fault
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Plate movement is measured by
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reflected laser light experiments age of sediments and fossils analysis of magnetic patterns in rocks
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Island that form when melted subducted material rises through above of sea level are called
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Arc Island
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The science that study atmosphere and weather
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meterorology
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Up from the surface, 99 percent of the mass of the earth is found within
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32 km 20 millas
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The most abundant gas in the atmosphere is
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nitrogen
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Approximately how much or the total of volume of the atmosphere is Oxigen
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21 percent
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Fog and clouds are composed
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tiny droplets of liquid water
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The continuous cycle of water precipitation and evaporation is called
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hydrologic cycle
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Tiny solid or liquid smoke, soot, dust, and salt crystals found in the atmosphere are
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aerosols
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Atmospheric pressure is measured using
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barometer
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Which molecules in the atmosphere absorb infrared radiation?
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Water
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What is the process heating the atmosphere by the absorption of solar of solar radiation and re-emission or infrared radiation?
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Greenhouse Effect
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Near of surface what happens to the temperature of the atmosphere with increasing altitude?
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Decreases
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What is the layer of the atmosphere where we live?
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Troposphere
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A layer of the atmosphere where the temperature increases with height is an
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inversion
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What is the boundary between the troposphere and the stratosphere?
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Tropopause
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In what lower layer of the atmosphere would transcontinental aircraft escape convective turbulence?
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stratosphere
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Ultraviolet radiations is filtered
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The ozone shield
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The term does not describe a layer of the atmosphere is
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temposphere
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Uneven heating of Earth's surface directly leads to
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Convection
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A general horizontal movement of air is called
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wind
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Air moving from the ocean to the land is called a
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sea breeze
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A rapidly moving "stream" of air near the top of the troposphere is
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a jet stream
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Water vapor in the atmosphere does not
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filter ultraviolet radiation out of the atmosphere
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the amount of water vapor at a particular temperature is defined as
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absolute humidity
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The temperature at which condensation begin is the
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dew point
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The basic changes of clouds do not include
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cotton tuff
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The airplane flying at about 6 km (20,000 ft) is about how much earth's atmosphere?
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50 percent
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Earth atmosphere is mostly composed of
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nitrogen, oxygen and argon
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Which of the following gases cycles into and out of the atmosphere?
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nitrogen, Carbon, Oxygen
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If it were not for the ocean, Earth's atmosphere would probably most
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carbon dioxide
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Your ear makes a "pop" sound as you descend in an elevator because
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air is moving fron your eardrum to the atmosphere
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Most of total energy radiating by the sun is
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infrared radiation
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How much of the total amount of solar radiation reaching the outermost part of Earth's atmosphere reaches to surface?
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About one half
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The solar radiation that does reach Earth Earth's surface
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is eventually radiated back to space
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The greenhouse effect results in warmer temperatures near the surface because
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some of the energy is re-radiated back toward the surface
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The temperature increase with altitude in the stratosphere
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of a concentration of ozone
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Ozone is able to protect Earth from harmful amounts of ultraviolet radiation by
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absorbing it and decomposing, then reforming
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summertime breezes would not blow if Earth did not experience
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differential heating
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On a clear, calm, cool night you would expect the air temperature over a valley floor to be what compared to the air temperature over a slope to the the valley?
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Cooler
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Air moving down a mountain slope is often warm because
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It is compressed as it moves to lower elevations
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Considering Earth's overall atmosphere you would expect more rainfall to occur in a zone of
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low atmospheric pressure
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Considering Earth's overall atmosphere you would expect to find a desert locate in a zone of
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high atmospheric pressure
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Water molecules can go (1) from the liquid state to the vapor state and (2) from the vapor state to the liquid state. When is the movement from the liquid to the vapor state only?
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This usually does not occur alone
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What condition means a balance between the number of water molecules moving to and from the liquid state?
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saturation
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Without adding or removing any water vapor, a sample of the atmosphere experiencing an increase in temperature will have
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a lower relative humidity
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Cooling a sample of water vapor results in a (an)
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decreased capacity
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On clear, calm, and cool nigh, dew or frost is most likely to form
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on grass in an open, low-lying area
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The density of the atmosphere
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Decreasing with increasing altitude
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Condensation nuclei provide a surface for fog or cloud formation, these particles include
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Salt Crystals, soot, and dust
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