Continental Drift(M)

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• Block 2
• Block 3
• Block 4

Scientists think the Earth's continents once formed a single landmass.

• True
• False

What is the driving force of continental drift?

• Convection in the Mantle
• Convection in the Core
• The forceful winds of a hurricane push the tectonic plates

Who was the scientist that believed that the position of today's continents were much different in the past?

• Wegener
• Hess

The single, large landmass that existed 245 million years ago that has since been broken up.

• Plate Tectonics
• Pangaea
• Panera

Scientists think the continents once formed a large, single landmass that broke apart, and then the continents slowly drifted to their present locations. What is the name given to this hypothesis?

• slap pull
• continental drift

Mountain ranges and fossils provided evidence that the continents were

• Separated by a larger ocean.
• once joined together as one land mass.

The fact that South America, Africa, India, Australia and Antarctica had evidence of Glossopteris, a tropical fern, provides evidence that

• they had similar animals on them because they were together.
• these landmasses had similar climates that have changed because they have moved.
• the landmasses had the same temperatures 245 million years ago as they do today