Drifting Continents and Sea-Floor Spreading

What process is the main cause for continental drift?

Who was the scientist who proposed the idea of continental drift?

What geological structure is at point A

What geological structure is at point B

The process by which the ocean floor sinks into the mantle is known as

A chain of underwater mountains along which sea-floor spreading occurs is a(n)

What is the name of the supercontinent that was on Earth 300 million years ago?

Where does subduction occur?

What process is occurring at the area marked with an X?

What is the driving force of sea-floor spreading?

A canyon on the ocean floor at which the crust bends downward is called a(n)

The process that continually adds new material to the ocean floor is called