Ch 3 Rocks and Weathering Review

Front

The movement of the tectonic plates is caused by

Back

convection currents in the Asthenosphere

Front

Observe this diagram of a plate boundary. One statement BEST describes what is happening. It is that: the oceanic crust is melting, the denser ceanic crust is subducting under the less dense oceanic crust, volcanic islands are forming, the tectonic plates are moving away from each other.

Back

the denser ceanic crust is subducting under the less dense oceanic crust

Front

Most geologists think that the movement of Earth’s plates is caused by _______

Back

convection.

Front

A place where two plates slip past each other, moving in opposite directions, is known as a _______

Back

transform boundary

Front

The place where two plates come together is known as a _______

Back

convergent boundary.

Front

Below is a picture of sea-floor spreading. How are the ocean crusts moving?

Back

Diverging

Front

The San Andreas Fault in California is known as an active earthquake area. What type of boundary is it?

Back

Transform

Front

What are the two types of crust? Options: continental and oceanic, ocean and upper, lower and upper, pizza and subway

Back

continental and oceanic

Front

Wegener’s proposal of a supercontinent was supported by: earthquake data, seafloor magnetism, rock, fossil, and climate data., convection currents in the mantle.

Back

rock, fossil, and climate data.

Front

What is this a picture of? Options: plate tectonics, continental drift, pangea, glacier scaring

Back

pangea