The theory of plate tectonics predicts that ....................... and volcanoes should occur at plate boundaries.

• earthquakes

• trenches

At plate boundaries some landforms, such as ...................................

• mountain ranges.

• mountain system

• earthquake

-A .............................boundary occurs when two tectonic plates move away from each other.

Earthquakes are common and magma (molten rock) rises from the Earth's mantle to the surface.

• divergent boundaries

• convergent boundaries

• transform boundaries

-Magma (molten rock) rises from the Earth's mantle to the surface, solidifying to create new ............................... crust.

If two continents collide, then a .................................................... is pushed up

• mountain range

• rift

• trenches

How the Himalayas formed, and are still being pushed up?

• convergent boundaries

• divergent boundaries

• transform boundaries

If two oceanic plates collide, the older, colder, and denser plate usually subducts beneath the younger plate

• true

• false

If one or both plates are oceanic, then ................................................occurs

-If two oceanic plates collide, the older, colder, and denser plate usually subducts beneath the younger plate, with an ........................................................ marking the plate boundary.