Pangaea & Continental Drift Norris

Front

What is the name of the supercontinent that existed 335 million to 200 million years ago?

Back

Pangaea

Front

What does the theory of continental drift propose about the continents?

Back

The continents were once joined in a supercontinent and have moved over time.

Front

What geological process is responsible for the movement of continents?

Back

Convection currents in the Earth's mantle.

Front

Who proposed the theory of continental drift?

Back

Alfred Wegener.

Front

What evidence supports the theory that Africa was once in a cold climate?

Back

Glacier scars found in Africa.

Front

What is the significance of the fossil record in supporting continental drift?

Back

Similar fossils found on different continents suggest they were once connected.

Front

How do tectonic plates relate to continental drift?

Back

Continental drift is caused by the movement of tectonic plates.

Front

What role do mid-ocean ridges play in continental drift?

Back

Mid-ocean ridges are sites where new oceanic crust is formed, pushing continents apart.

Front

What is the difference between continental drift and plate tectonics?

Back

Continental drift refers specifically to the movement of continents, while plate tectonics encompasses the movement of all tectonic plates, including oceanic plates.

Front

What type of evidence is used to support the theory of continental drift?

Back

Geological, fossil, and climatic evidence.