The process by which the ocean floor sinks beneath a deep ocean trench and back into the mantle again.
What type of plate boundary is taking place below?
What type of plate boundary is taking place below?

What type of plate boundary is taking place below?
Give an example of what can result at a Divergent Plate Boundary.
Give an example of what can result at a Tranform Plate Boundary.
Which of the following are evidences from Alfred Wegener's Continental Drift Theory? Select ALL that apply.
Which landform is created by convergent boundaries?
What is created by transform plate boundaries?
What is matter with a definite shape and definite volume?
What is matter that has a definite volume, but NOT a definite shape.
________ is a liquid’s resistance to flow.
Which item has the highest the viscosity?
The process of one plate diving under another plate is known as
What kind of plate boundary results to the formation of a fault line like the San Andreas fault in California?
Has mass and takes up space
Who believed that the continents were once a supercontinent?
What is the name of the supercontinent that was present 200 million years ago, according to Alfred Wegener?