Plate Boundaries

Whenever a subduction zone is formed a ______ is formed.

• Earthquake

• Volcano

• Mountain Range

• Tsunami

Continental Drift and Sea-floor spreading were combined into the new more recent theory of ___________.

• Plate Tectonics

• Continental Convergence

• Oceanic Expansion

• Geological Dynamics

Which type of boundary is known for causing big earthquakes?

• divergent

• convergent

• transform

• fault

What is the term that describes the process of coming together from different directions?

• Divergent

• Convergent

• Diverging

• Separating

Which of the following occurs because of convection currents?

• Tectonic plates on the crust move.

• The mantle increases in size.

• Pressure in the crust increases.

• Pressure in the crust decreases.

Who came up with the idea of Continental Drift?

• Alfred Wegener

• Harry Hess

• Arthur Holmes

• James Hutton

Oceanic plates separate from each other at a divergent plate boundary at the bottom of the ocean.  Magma comes up and cools between the plates, forming...

• a mid-ocean ridge

• a volcanic island

• a trench

• a continental shelf

Which type of plate boundary DOES NOT cause volcanoes?

• Convergent

• Transform

• Divergent

• Subduction

In which type of boundary do the plates go away from each other?

• convergent

• normal

• divergent

• transform

What would you be most likely to find at a divergent boundary between two pieces of oceanic crust?

• Rift

• Mid-Ocean Ridge

• Island Arc

• Flat land