Chapter 10

How does sediment that is closer to a mid-ocean ridge compare to sediment that is farther away?

• it is larger
• it is smaller
• it is older
• it is younger

Wegener's hypothesis of continental drift was finally confirmed by ___.

• fossils from the same reptile found on two continents. 
• evidence supporting the idea of sea-floor spreading.
• continental coastlines that fit together.
• the formation of mountain ranges such as the Andes.

The Himalaya Mountains were formed in a collision at a ___.

• divergent boundary
• convergent boundary
• transform boundary
• fracture zone

An example of a transform boundary is the ___.

• San Andreas Fault in California
• Nazca plate on the west coast of South America
• Eurasian plate at the Mid-Atlantic Ridge
• island arc of Japan

The theory that explains why and how continents move is called ___.

• continental drift
• paleomagnetism
• plate tectonics
• sea-floor spreading

A terrane becomes part of a continent in a process called ___.

• rifting
• converging
• slab pull
• accretion

What occurs at a transform boundary?

• Oceanic lithosphere collides with continental lithosphere.
• Magma rises to the surface and forms a mid-ocean ridge.
• Two plates slide past each other horizontally.
• Two plate collide and crumple.

Folded mountains form ___.

• when a state of isostasy occurs
• when continents collide
• when continents diverge
• after huge earthquakes

When the oceanic and continental lithosphere collide, ___.

• the oceanic plate subducts
• the continental plate subducts
• their momentum stops each other
• they reach isostasy

What is subduction?

• one plate collides with another
• one plate destroys another
• one plate goes beneath another
• one plate divides another