Pregunta 1
Pregunta
The asthenosphere is:
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A layer of partially molten material within the upper part of the mantle
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The section of the Earth's crust upon which contact is established between the partially molten mantle and the tectonic plates
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An area within the mantle in which the lithospheric plates are sitting, made up of solid rock
Pregunta 2
Pregunta
The majority of landform features associated with the Earth's internal forces are the result of large, spectacular movements constantly being repeated every few thousand years.
Pregunta 3
Pregunta
Geomorphology is specifically the: (can select more than one)
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Study of landforms and their origin and evolution
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Study of distribution and form of rocks and minerals inside the Earth's crust
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Study of landforms and their distribution and form
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Study of the origin and evolution of rocks and minerals inside the Earth's crust
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Study of how the lithosphere was created, and how it reacts to mankind
Pregunta 4
Pregunta
Radius of the core?
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34 000km
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340 000km
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340km
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3 400km
Pregunta 5
Pregunta
The separation between the asthenosphere and the lithosphere is called the...
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Mohorovic Discontinuity
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Wegener Margin
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Wegener Discontinuity
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Mohorovic Margin
Pregunta 6
Pregunta
Alfred Wegener began his theory of Continental Drift in 1915, but lacked scientific interest because it could not provide substantial evidence for a medium to which continents could move.
Pregunta 7
Pregunta
Tectonic Plate motion is widely believed to be caused by:
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Convection currents in the mantle push the plates apart at diverging boundaries
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Convection currents in the mantle carry the plates in directions from within the asthenosphere
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Gravity pulls the plates towards the lowest point of altitude - the oceans - where they subduct or diverge and repeat the process
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Convection currents in the mantle pull plates into subduction margins where displacement forces the other plates to move in the direction
Pregunta 8
Pregunta
Plates move at approximately ____ per year.
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1.5 - 7cm
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15 - 70cm
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1.5 - 7m
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15 - 70m
Pregunta 9
Pregunta
Oceanic lithosphere (crust) is denser than continental lithosphere.
Pregunta 10
Pregunta
An oceanic plate is the plate underneath all the areas of the various oceans.
Pregunta 11
Pregunta
What plate boundary is shown in this image?
Pregunta 12
Pregunta
Diverging plate boundaries can form:
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Mid-ocean ridges as new crust is formed from solidified molten material
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Mountain ranges as plates are pushed together, forcing crust upwards
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Subduction, as one plate pushes the other into the mantle
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Earthquakes as a single fault line releases the build-up of pressure along the plate
Pregunta 13
Pregunta
Converging plate boundaries between oceanic and continental crust can form...
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Mid-ocean ridges as new crust is formed from solidified molten material
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Mountain ranges as plates are pushed together, forcing crust upwards
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Subduction, as one plate pushes the denser plate into the mantle
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Earthquakes as a single fault line releases the build-up of pressure along the plate
Pregunta 14
Pregunta
A conservative margin between two plates can cause...
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Mid-ocean ridges as new crust is formed from solidified molten material
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Mountain ranges as plates are pushed together, forcing crust upwards
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Subduction, as one plate pushes the denser plate into the mantle
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Earthquakes as a single fault line releases the build-up of pressure along the plate
Pregunta 15
Pregunta
These landforms/activities are examples of destructive margins: (can select more than one)
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Mount St Helens
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Monsterrat
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Iceland
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Mid-Atlantic Ridge
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Andes
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Himalayas
Pregunta 16
Pregunta
Faults are fractures in a rock's structure.
Pregunta 17
Pregunta
The focus is the area on the surface directly above the epicentre of the earthquake.
Pregunta 18
Pregunta
What can be done to help prevent or worsen the impact of a tsunami?
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(This is an open ended question. It is here to make you answer this for yourself and think about it now) (This answer is correct)
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(This is an open ended question. It is here to make you answer this for yourself and think about it now) (This answer is incorrect)
Pregunta 19
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The area estimated to be affected by a volcanic eruption
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The buildup of material around a volcano creating a cone-like structure
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When a violent eruption blows off the top of an existing volcanic cone
Pregunta 20
Pregunta
What results in gradation?
Pregunta 21
Pregunta
Gradational processes work to smooth out the surface of the lithosphere.
Pregunta 22
Pregunta
Which of these statements on gradational processes are correct?
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Exposed rock material is fragmented by weathering, detached by mass movements and agents of erosion, and then deposited at lower elevations as debris.
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Exposed rock material is fragmented by agents of erosion, detached by mass movement and weathering, and then deposited at lower elevations as debris.
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Exposed rock material is fragmented by deposition, detached by mass movements and weathering , and then eroded at lower elevations as debris.
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Exposed rock material is fragmented by mass movement, detached by weathering and agents of erosion, and then deposited at lower elevations as debris.
Pregunta 23
Pregunta
Types of weathering: (can select more than one)
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Unloading
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Frost Action
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Glacial Ice
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Organic Action
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Running Water
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Winds
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Solutions
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Hydration
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Oxidation
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Organic Acids
Pregunta 24
Pregunta
Mass movement is the movement of weathered particles through gravity.
Pregunta 25
Pregunta
These are examples of mass movement: (can select more than one)
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Land slides
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Soil creep
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Running streams/water
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Earthquakes
Pregunta 26
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Agents of erosion are wind, running water, and gravity.
Pregunta 27
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Fluvial processes are the gradational process of erosion through running water.
Pregunta 28
Pregunta
Running water is particularly effective for fluvial processes of erosion in... (can select more than one)
Pregunta 29
Pregunta
Hydraulic action in fluvial processes is:
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The shearing force of the running water itself, exerting force and dragging on the river beds and banks
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Rock particles carried by the running water striking the channel walls
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Chemical solutions from rocks being exposed to solvents carried in the river
Pregunta 30
Pregunta
Abrasion in fluvial processes is...
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The shearing force of the running water itself, exerting force and dragging on the river beds and banks
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Rock particles carried by the running water striking the channel walls
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Chemical solutions from rocks being exposed to solvents carried in the river
Pregunta 31
Pregunta
Corrosion in fluvial processes is...
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The shearing force of the running water itself, exerting force and dragging on the river beds and banks
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Rock particles carried by the running water striking the channel walls
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Chemical solutions from rocks being exposed to solvents carried in the river
Pregunta 32
Pregunta
A pyroclastic flow is a river of hot liquid, ash, mud and rock moving at very low speeds at temperatures of about 500°C
Pregunta 33
Pregunta
Differential erosion is the process of softer rock in a plateau gradually being eroded away, leaving pillars of harder rock standing.