Plate Tectonics

In reversed polarity, a magnetized object would point geographically _______.

Plates move apart at a ____________ boundary.

Which can be used as an indicator of past climate?

A rift valley forms at a __________.

Plates slide past one another at ____.

Which of the following could explain what is happening at Point B in the diagram?

Seafloor spreading occurs because ____.

Where are you most likely to find earthquakes, volcanoes and mountains?

____ are formed at a convergent boundary.

Plate tectonics states that the _________ is broken into sections called tectonic plates.

The theory of seafloor spreading is supported by all of the following except _____________.

______ are typically more dense and subduct under less dense ______ at a convergent boundaries.

The youngest rocks on the ocean floor are located ____________.

The video illustrates what process?

Shear stress on plates produces ______________.

A ____ forms where two oceanic plates collide.

Which of the following is not considered evidence of continental drift?