Test Review

1. 1Gas trapped in magma under high pressure can cause explosive eruptions.

   1. ATrue
   2. BFalse
2. 2Volcanoes can form on the ocean floor.

   1. ATrue
   2. BFalse
3. 3Most igneous activity takes place above ground in volcanoes.

   1. ATrue
   2. BFalse
4. 4Today, people are never killed by volcanic eruptions.

   1. ATrue
   2. BFalse
5. 5Cinder cone volcanoes produce quiet eruptions.

   1. ATrue
   2. BFalse
6. 6There is no relationship between plate tectonics and volcanoes.

   1. ATrue
   2. BFalse
7. 7Where can volcanoes form?

   1. AConvergent plate boundaries
   2. BDivergent plate boundaries
   3. COver hotspots in the middle plates
   4. DAll of the above
8. 8Which statement accurately describes a pyroclastic flow?

   1. APyroclastic flows move at speed of more than 100 km/hr and have temperatures over 2,000°C
   2. BPyroclastic flows occur when the snow and ice of the summit are melted and mix with the ash and mud on the mountain
   3. CPyroclastic flows move very slowly, and are rarely deadly
   4. DPyroclastic flows move very quickly, but are relatively cool
9. 9Silica-rich magma ____________.

   1. ASometimes forms where Earth's plates are coming together and one plate is forced under another
   2. BProduces explosive eruptions
   3. CIs thick and gas gets trapped. Causing pressure to build up
   4. DAll of the above
10. 10In what wat do volcanic eruptions affect the climate?

    1. AThey cause a global temperature increase
    2. BThey cause a global temperature decrease
    3. CThey cause a global precipitation increase
    4. DThey cause a global precipitation decrease

11. 11"We all got scared and ran outside. The house was ok, but the shed fell over." This quote would help a researcher to place an earthquake on which scale?

    1. AModified Mercalli Scale
    2. BMoment magnitude scale
    3. CRichter Scale
    4. DAll of the above
12. 12How does the amount of silica content change the viscosity of magma? How does this affect the flow of the magma?

    1. AA low silica content leads to a low viscosity and a slower rate of flow
    2. BA low silica content leads to a high viscosity and a slower rate of flow
    3. CA low silica content leads to a low viscosity and a faster rate of flow
    4. DA low silica content leads to a high viscosity and a faster rate of flow
13. 13A break in Earth's lithosphere where one block of rock moves toward, aways from, or past another is called a(n) _________.

    1. AFault
    2. BStrain
    3. CStress
    4. DEarthquake
14. 14Which waves travel the deepest into the center of Earth?

    1. AP-waves
    2. BS-waves
    3. CSurfaces waves
    4. DThey all travel to the center of the inner core
15. 15If you wanted to avoid earthquakes, which would be the best choice of location?

    1. Awest coast
    2. BSouthern alaska
    3. CThe largest island in Hawaii
    4. DThe Great Lakes region
16. 16Which scale would be used to classify an earthquake based on a description found in ancient writings?

    1. AModified Mercalli Scale
    2. BRichter scale
    3. CMoment magnitude scale
    4. DAll of the above
17. 17Along a(n) ________ fault, rock above the fault surface moves downward in relation to rock below the fault surface.

    1. ANormal
    2. BReverse
    3. CElastic
    4. DStrike-slip
18. 18One factor that determines whether a volcanic eruption will be quiet or explosive is ________.

    1. AThe number of cinder cones
    2. BThe height of the volcano's vent
    3. CThe amount of water vapor and other gases trapped in the magma
    4. DThe amount of tephra in the magma
19. 19Which movement of two blocks of rock along a fault causes an earthquake to accur?

    1. ASliding horizontally past each other
    2. BPulling away from each other
    3. CMoving toward each other
    4. DAny of the above
20. 20Which describes the makeup of volcanic ash?

    1. AParticles of pulverized rock and vegetation
    2. BParticles of pulverized rock and glass
    3. CPulverized bits of glass
    4. DPulverized particles of rock
21. 21Scientists discovered changes in Earth's interior by studying _______.

    1. ATsunamis
    2. BChanges in seismic waves
    3. CTides
    4. DAll of the above
22. 22If, after an eruption, the top of a volcano collapses down, a ________ forms.

    1. ACaldera
    2. BCrater
    3. CVent
    4. DVolcanic neck
23. 23A normal fault occurs where forces pull two blocks of rock apart. At which kind of plate boundary does this occur?

    1. AConvergent plate boundary - This is where plates are coming closer together.
    2. BConvergent plate boundary - This is where plates are moving apart.
    3. CDivergent plate boundary - This is where plates are moving apart.
    4. DDivergent plate boundary - This is where plates are coming closer together.
24. 24The ________ waves are the first to reach a seismograph after an earthquake.

    1. ASurface
    2. BSecondary
    3. CPrimary
    4. DTsunami
25. 25Lava flows like the one from Mount Etna in 2008.

    1. ATravel quickly and cause many deaths.
    2. BCan last over 6 months.
    3. CRarely cause any damage.
    4. DNever cause towns to evacuate
26. 26The magnitude of an earthquake is measured by the _________.

    1. ARichter scale
    2. BModified Mercalli Scale
    3. CMoho discontinuity
    4. DStay the same
27. 27Secondary waves ______ when they hit the liquid outer core.

    1. ASlow down
    2. BStop
    3. CStay the same
    4. DSpeed up
28. 28A person located twice as far from the epicenter of an earthquake as another person will notice that the time between the arrival of the primary and secondary waves will be _______.

    1. AThe same
    2. BLarger
    3. CReduced
    4. DUnnoticeable
29. 29Which factor does NOT affect the speed of a seismic wave?

    1. ATemperature
    2. BChemistry of the rocks
    3. CSeason of the year
    4. DPressure
30. 30For the moment magnitude scale, each increase on the scale represented 31.5 times more energy released by the earthquake. Which is a good estimate of about how much more motion is there for a magnitude 7 earthquake than a magnitude 4 earthquake?

    1. A90 times
    2. B900 times
    3. C27,000 times
    4. D3,000 times
31. 31[blank_start]Primary waves[blank_end] move through Earth by causing particles of rocks to move back and forth in the same direction as waves.

    1. APrimary waves
32. 32Two important factors that control whether an eruption will be explosive or quiet are the amount of [blank_start]water vapor[blank_end] and other gases and the amount of [blank_start]silica[blank_end] in the magma.

    1. Awater vapor
    2. Bsilica
33. 33[blank_start]Secondary waves[blank_end] move through Earth by causing particles in rocks to move at right angles to the direction of the waves.

    1. ASecondary waves
34. 34The radius of the circle seismologists draw on a map is equal to the distance from a station to an earthquake's [blank_start]epicenter[blank_end].

    1. Aepicenter
35. 35[blank_start]Primary[blank_end] waves arrive at a seismograph first.

    1. APrimary
36. 36When rocks break because of stess, the energy released is in the form of a(n) [blank_start]earthquake.[blank_end]

    1. Aearthquake.
37. 37The Richter Scale is based on the heigh of the lines traced by a(n) [blank_start]seismograph[blank_end].

    1. Aseismograph
38. 38The San Andreas Fault in California is an example of a(n) [blank_start]strike slip[blank_end] fault.

    1. Astrike slip
39. 39To locate an earthquake [blank_start]epicenter[blank_end], scientist use information from three seismograph stations.

    1. Aepicenter
40. 40The farther apart primary, secondary, and surface waves are, the [blank_start]farther away[blank_end] the epicenter is.

    1. Afarther away

Description

Quiz on Test Review, created by kamili pp on 16/12/2018.

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kamili pp

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Created on 16 Dec 2018 · updated on 16 Dec 2018

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