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GY 102- Topic 4A Test |Questions with Correct Answers
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GY 102- Topic 4A Test |Questions withCorrect Answers
How do tectonic terranes become part of the continental crust? - ✔-they collide
with the continental landmass at a convergent plate boundary
-at a subduction zone, they scrape off the subducting plate and are tectonically added
to the continent
For a plate to move, the driving forces must exceed the - ✔resisting forces
A ___ zone is formed when one plate slides beneath another. - ✔subduction
What specific type of plate boundary is commonly found in conjunction with mid-
ocean ridges, as it works to offset spreading and plate divergence? - ✔transform
___ are curving chains of mostly volcanic islands that cross the seafloor. - ✔arcs
Rank the following features in order of encounter, if on a hypothetical trip from
the west coast to the east coast of North America - ✔1.Sierra Nevada Mountains:
moderate to high elevation
2.Basin and Range: moderately high elevation, largely due to very thin lithosphere
, 3.Colorado Rockies: compression and shortening of the North American plate
4.Great plains: elevation decreases toward the east, as lithosphere gets cooler and
thicker
5.Appalachian Mountains: ancient collision of North America and Africa where elevation
was lessened over time by erosion
The type of plate movement that occurs at transform faults is - ✔horizontal
movement of one tectonic plate past another
Match the mountain or plateau location with its tectonic settling - ✔Western
Canada-convergent margin collisions; thickened crust
Andes-above a subduction zone; magmatic additions and crustal thickening
Alps-Collisions between Europe and smaller continental blocks from the south
East Africa Rift-magmatic heating of the crust, thinning of the lithosphere,
mantle upwelling
Tibetan Plateau and Himalaya- continental collision of India and Asia
Great Divide Range in eastern Australia-no plate boundary currently there; geologists
investigating the cause of the uplift
If an internal process, such as volcanism, creates a volcano, which of the following
external processes would be involved in wearing it away over time? - ✔-
sediment transport
-weathering
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