unit 5 quiz

What type of geologic feature would you expect to find along the west coast of South America?

• a rift valley

• an arc of volcanoes

• an ocean ridge

• a transform fault

What is the east coast of the UNITED STATES an example of?

• divergent continental margin

• convergent plate boundary

• transform plate boundary

• passive continental margin

At which of these boundaries would you expect to find oceanic lithosphere being created?

• between the South American and Nazca plates

• between the Pacific and North American plates

• between the North American and Eurasian plates

• between the Cocos and Caribbean plates

How do plates move to form a continental rift valley?

• in transform type boundaries

• in convergent type boundaries

• in divergent type boundaries

• in subduction zones

Which is true about the deepest ocean trenches?

• they form in subduction zones

• they are deeper than some mountains are tall

• they are formed from oceanic crust

• all of the above

What is the direction of movement at a convergent plate boundary?

• side by side

• toward each other

• away from each other

• no movement

During subduction, why will the magma produced by the subducting plate rise upward?

• because it is colder than the surrounding material

• because its composition has changed from basalt to granite

• because it is less dense than the surrounding material

• because of the Coriolis Effect on magma

Where are hydrothermal vents most abundant?

• near shallow coastlines

• in places where there is constant upwelling

• adjacent to large coral reefs

• along mid-ocean ridges

What are the common minerals found in the "black smoke" coming from a hydrothermal vent?

• iron and sulfur

• nitrogen and oxygen

• hydrogen and crypton

• all of the above

From where does the material supplying a hot spot come?

• melting lithosphere

• the asthenosphere

• subducting plates

• core-mantle boundary