Continental Drift Video

Who first introduced the idea of 'continental drift'?

• Alfred Wegener

• Arthur Holmes

• Harry Hess

• Isaac Newton

What did Alfred Wegener notice that led him to propose his theory?

• The continents were all the same size.

• The continents had different climates.

• The continents appeared to fit together like a jigsaw puzzle.

• The continents were moving at rapid speeds.

What was one piece of evidence Wegener used to support his theory?

• The discovery of land bridges between continents.

• The distribution of deserts around the world.

• The presence of the same animal fossils on different continents.

• The similarity of languages across continents.

Why was Wegener's theory initially rejected?

• Because it contradicted religious beliefs.

• Because he was too young.

• Because the technology to prove his theory didn't exist.

• Because no one could explain how continents might move.

What did Arthur Holmes propose that supported Wegener's theory?

• Continents moved due to the Earth's rotation.

• The moon's gravitational pull moved the continents.

• The Earth was flat.

• Thermal convection in the mantle could move continents.

What discovery by Harry Hess contributed to the acceptance of plate tectonics?

• An underground ocean.

• A large deposit of dinosaur fossils.

• A strange magnetic pattern along a seafloor ridge.

• A new continent.

How much do the Eurasian and North American plates move apart each year?

• 10 centimeters

• 5 centimeters

• 2.5 centimeters

• 1 centimeter

What will eventually happen due to the splitting of the African plate?

• A new ocean will form.

• It will collide with Asia.

• It will disappear.

• It will stop moving.

Where do 90% of the world's earthquakes occur?

• In the Arctic Circle

• Along the 'Ring of Fire'

• In the Sahara Desert

• Along the Equator