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At transform boundaries: Question 1 options: plates slide past one another along the surface of the...

At transform boundaries:

Question 1 options:

plates slide past one another along the surface of the earth

plates are moving away from each other

plates are moving towards each other

Question 2 (1 point)

Which of the following is a type of plate boundary where new sea floor is formed?

Question 2 options:

divergent

convergent

emergent

transform

Question 3 (1 point)

What type of plate boundary mainly surrounds the Antarctic Plate?

Question 3 options:

convergent

divergent

transform

-

Question 4 (1 point)

The farther from the mid ocean ridge, the ___________ the oceanic lithosphere

Question 4 options:

older and more dense

younger and more dense

younger and less dense

older and less dense

Question 5 (1 point)

At transform-plate boundaries ____________.

Question 5 options:

earthquakes are common but volcanoes are absent

volcanoes are common but earthquakes do not occur

both earthquakes and volcanoes are common

Question 6 (1 point)

The San Andreas Fault zone in southern California is an example of a ____________-plate boundary.

Question 6 options:

convergent

divergent

transform

Question 7 (1 point)

Segments of the mid-ocean ridge system are offset. Between the offset segments we observe ____________.

Question 7 options:

a second series of ridges, perpendicular to the main set

deep-ocean trenches

transform faults

None of the above are correct.

Question 8 (1 point)

The mid-ocean ridges are elevated above the surrounding sea floor because ____________.

Question 8 options:

ridge rocks are hot and therefore of relatively low density

the lithospheric plates are thickest at the ridges so that they stand up taller

rising ocean currents leave a vacuum above the ridge

ridge rocks are mafic, whereas the ocean basin crust consists of ultramafic rock

Question 9 (1 point)

Which of the following is a type of plate boundary where new sea floor is formed?

Question 9 options:

divergent

convergent

emergent

transform

Question 10 (1 point)

Which of the following features characterize a divergent plate boundary?

Question 10 options:

a)

mid ocean ridge system if boundary is in the ocean

b)

hydrothermal vents and/or volcanoes

c)

oldest rocks of the ocean crust

d)

shallow focus earthquakes

e)

all of the above

f)

a and b only

g)

a, b, and c only

h)

a, b, and d only

Question 11 (1 point)

Examples of divergent boundary areas located on land (above sea level where we can see them!) include: (select all that apply)

Question 11 options:

Peru-Chile Trench

East African Rift

San Andreas Fault System

Iceland

East coast of the United States

Question 12 (1 point)

The age of oceanic crust ____________ with increasing distance from a mid-ocean ridge.

Question 12 options:

increases

decreases

Question 13 (1 point)

As lithosphere cools to the sides of a mid-ocean ridge, it begins to ____________.

Question 13 options:

rise with respect to material located closer to the ridge axis

sink with respect to material located closer to the ridge axis

Question 14 (1 point)

Why is the ocean deeper over older ocean floor than younger ocean floor?

Question 14 options:

The deeper ocean floor is below 1,280°C.

The deeper ocean floor is older than 80 million years old.

The deeper ocean floor is thick and dense.

All of the above are correct.

Question 15 (1 point)

Iceland is one of the few places in the world that is both above sea level and situated atop a ____________ plate boundary.

Question 15 options:

convergent

divergent

transform

Question 16 (1 point)

Mid-ocean ridges are ____________.

Question 16 options:

convergent-plate boundaries

divergent-plate boundaries

transform-plate boundaries

Solutions

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