u4 quiz 3209

U4 Quiz 3209

Question and Answer Samples and Techniques

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1. What happens at a transform plate boundary?

Plates are subducted into the mantle.

Major mountain belts are produced by continental collisionNew oceanic crust is producedPlates move past each other along a fault.

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2. What evidence was used to support the Plate Tectonic theory?

isostatic adjustment

hanging valleys

crustal uplifting

seafloor spreading

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3 What sort of force is shown in the diagram below?

faultingtensional

compressionalshear

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4 The composition of this molten is largely ...? ... since the melting basaltic oceanic crust becomes mixed with melting weathered sediments that were located on top of the subducting plate

ultramaficmaficintermediate

andesitic

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5. What is the point on Earth’s surface directly above an earthquake’s origin?

foreshock

aftershock

focus

epicenter

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6. Earthquake X is 3.5 on the Richter scale. Earthquake Y releases approximately 27 000 times more energy than earthquake X. What is the Richter scale reading of earthquake Y?

8.5

6.54.55.5

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7 Which piece of supporting evidence for plate tectonics is referenced in the diagram below?

fossil correlationmountain chainspolar wanderingmagnetic reversals

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8. Which scientist proposed the existence of Transform Faults and Hotspot Volcanism?

Arthur HolmesAlfred WegenerHarry HessJ. Tuzo Wilson

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9. Which earthquake wave can travel through both solids and liquids?

secondary

shear

Rayleigh

primary

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10 Differential motion along subduction zone produces deep-seated earthquakes, the foci of which may be as deep as ...?... Km.

2600

25010

700

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11. Which if the following is a deep active seismic area in a subduction zone, where earthquake foci may be as deep as about 700 kilometres .

Rift ValleyContinental MarginFracture zoneWadati–Benioff zone

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12. Which of the following are formed by the large outpourings of fluid lava from fissures (long narrow openings) in the crust?

Rift ValleysPlutonsFold MountainsLava plateaus 

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13. Which scientist proposed the existence of a supercontinent called Pangaea?

J. Tuzo Wilson

Harry Hess

Arthur Holmes

Alfred Wegener

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14. Which volcano will produce basaltic lava when it erupts?

stratovolcanocompositecindershield

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15 What sort of feature is located at A?

Fold Mountain

Volcanic arc

Island arcTrench

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16 These surface features created by descending plates vary considerably in depth and width.

Benioff zones

volcanoesrift valleys

trenches

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17.Which of the following DOES NOT represent a divergent plate boundary?

East African Rift Valley

Mid-Atlantic ridge

Mid-Indian ridge

Chile Trench

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18 Indicate the direction of plate motion on either side of the ridge.

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19. In which layer of Earth does convection occur resulting in plate movement?

outer core inner core

lithosphereasthenosphere

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20. The earth’s outer shell consists of about many rigid slabs called plates that are in slow, continuous motion relative to one another. How many?

4030

1020

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21 Which feature was formed by continental-continental collisions?

Emperor SeamountsCascade MountainsRift ValleyAppalachian mountains

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22 What is illustrated in the diagram?

Seismic Waves reflect At faults

Earthquakes only occur Near mountains

All Seismic waves travel at the same speed

Seismic waves move in 3 dimensions

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23. Which of the faults listed below is most similar to the San Andreas?

NiagaraRift DoverAlpine

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24 What sort of fault is located at A in the diagram below?

subductionreversenormaltransform

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25. Which aspect of earthquakes is recorded by the Modified Mercalli Scale?

magnitudeamplitudelocationintensity

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26 The volcanoes produced at oceanic-oceanic collisions are of which variety

Volcanic arc

IntraplateHot spot

Island arc

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27. Basaltic lava that has a billowy, or ropy surface is referred to as?

Viscous

BasalticAʻā

Pāhoehoe

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28 Deep Ocean drilling aided in our understanding in which pieces of evidence for plate tectonics?

PaleoclimatesStrata CorrelationApparent Polar WanderingMagnetic reversals

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29. At which kind of boundary would you expect to find the highest percentage of basaltic rock?

transform

subduction

convergent

divergent

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