Plate Boundaries

Front

Who proposed the Continental Drift Theory?

Back

Alfred Wegener

Front

In what year was the Continental Drift Theory introduced? Options: 1912, 1945, 1960, 1930

Back

1912

Front

What is the name of the single large continent, from which the other continents were formed?

Back

Pangaea

Front

What type of evidence was helpful in proving the Continental Drift theory?

Back

fossil evidence, continental fit, glacial evidence and landform and rock layers

Front

When did the Earth's continents stop breaking apart and coming together?

Back

It has not stopped, it is continually breaking apart and coming together.

Front

When did Pangea first start to break apart?

Back

175 million years ago

Front

What were the names of the two continents that started drifting apart?

Back

Laurasia and Gondwanaland

Front

Who proposed the Plate Tectonics Theory?

Back

Harry Hess

Front

What did Harry Hess measure when he was in the navy?

Back

the surface of the ocean floor

Front

What is the Continental Drift Theory?

Back

The idea that Earth's continents moved apart from a single large continent called Pangaea.