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Plates and Such

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

The youngest rocks on the ocean floor are located ____.
a.
near continents
c.
far from mid-ocean ridges
b.
at mid-ocean ridges
d.
near Asia
 

 2. 

Scientists have discovered that the plates moving at a speed of about 2 inches per ____.
a.
century
c.
day
b.
decade
d.
year
 

 3. 

Plates of the lithosphere float on the ____.
a.
crust
c.
core
b.
asthenosphere
d.
atmosphere
 

 4. 

The result of plate movement can be seen at ____.
a.
abyssal plains
c.
continental centers
b.
ocean margins
d.
plate boundaries
 

 5. 

TheHimalayan Mountains were formed at a _______ between the Indo-Australian Plate and the Eurasian Plate.
a.
divergent boundary
c.
convergent boundary
b.
subduction zone
d.
transform boundary
 

 6. 

The hypothesis that continents have slowly moved to their current locations is called ____.
a.
continental drift
c.
magnetic reversal
b.
continental slope
d.
convection
 

 7. 

Plates move apart at ____ boundaries.
a.
convergent
c.
divergent
b.
stable
d.
transform
 

 8. 

Plates slide past one another at ____.
a.
subduction zones
c.
convection currents
b.
transform boundaries
d.
divergent boundaries
 

 9. 

The boundary between two plates moving together is called a ____.
a.
divergent boundary
c.
transform boundary
b.
convergent boundary
d.
lithosphere
 

 10. 

Seafloor spreading is caused by ____.
a.
new material is being added to the asthenosphere
b.
earthquakes break apart the ocean floor
c.
sediments accumulate at the area of spreading
d.
convection currents in the mantle
 

 11. 

A fossil plant that helps support the theory of continental drift is ____.
a.
velocaraptor
c.
Glomar
b.
Glossopteris
d.
Pangaea
 

 12. 

____ currents inside Earth cause plate movement.
a.
Vertical
c.
Horizontal
b.
Convection
d.
none of the above
 

 13. 

Active volcanoes are most likely to form  ____.
a.
at transform boundaries
b.
at divergent boundaries
c.
at the center of continents
d.
above subduction zones
 

 14. 

____ are formed when two continental plates collide.
a.
Volcanoes
c.
Mountain ranges
b.
Strike-slip faults
d.
Rift valleys
 

 15. 

The ____ is (are) an example of a transform boundary.
a.
Appalachian Mountains
c.
Mid-Atlantic Ridge
b.
Himalaya
d.
San Andreas Fault
 

 16. 

At a convergent boundary, what kind of crust is likely to sink into mantle?
a.
continental crust
c.
lithospheric crust
b.
oceanic crust
d.
mid-ocean ridge crust
 
 
nar001-1.jpg
Figure 10-1
 

 17. 

According to Figure 10-1, what type of plate boundary occurs between the North American Plate and the Eurasian Plate?
a.
transform boundary
b.
divergent boundary
c.
convergent oceanic-continental plate boundary
d.
convergent oceanic-oceanic plate boundary
 

 18. 

According to Figure 10-1, what type of plate boundary occurs between the Nazca Plate and the South American Plate?
a.
convergent oceanic-continental plate boundary
b.
convergent oceanic-oceanic plate boundary
c.
convergent continental-continental plate boundary
d.
transform boundary
 

 19. 

What is causing the ocean basin to get larger?
a.
two convergent boundaries
c.
a massive subduction zone
b.
a transform boundary
d.
a divergent boundary
 

 20. 

mc020-1.jpg
This picture shows the San Andreas Fault.  What kind of boundary is this?
a.
convergent
c.
transform
b.
divergent
d.
subduction
 



 
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