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- 1. Multiple Choice
In sea-floor spreading, molten material rises from the mantle and erupts
along the edges of all the continents.
along mid-ocean ridges.
in deep-ocean trenches.
at the north and south poles.
- 2. Multiple Choice
The process by which the ocean floor sinks beneath a deep-ocean trench and back into the mantle is known as _______
convection.
continental drift.
subduction.
conduction.
- 3. Multiple Choice
Most geologists think that the movement of Earth’s plates is caused by _______
convection.
continental drift.
subduction.
conduction.
- 4. Multiple Choice
A place where two plates slip past each other, moving in opposite directions, is known as a _______
transform boundary
divergent boundary.
convergent boundary.
rift valley.
- 5. Multiple Choice
Scientists think that convection currents flow in Earth’s
continents.
mantle.
lithosphere.
inner core.
- 6. Multiple Choice
The place where two plates come together is known as a _______
transform boundary.
divergent boundary.
convergent boundary.
rift valley.
- 7. Multiple Choice
Below is a picture of sea-floor spreading. How are the ocean crusts moving?
Converging
Diverging
Sliding
No movement
- 8. Multiple Choice
The San Andreas Fault in California is known as an active earthquake area. What type of
boundary is it?
Converging
Diverging
Transform
Sea Floor Spreading
- 9. Multiple ChoiceWhere would the oldest rock be found?LMNO
- 10. Multiple ChoiceHow is it possible for new crust to be formed without increasing the surface area of the Earth?Crust is destroyed at the same time it is createdNew crust is underwater where it sinksNew crust breaks more easily than old crust
- 11. Multiple ChoiceWhat are the two types of crustcontinental and oceanicocean and upperlower and upperpizza and subway
- 12. Multiple ChoiceThe Himalayas in Asia are an example of what type of plate boundary?divergentcontinent-to-continent convergentocean-to-continent convergenttransform
- Answer choicesTagsAnswer choicesTags