Continental Drift Theory

Alfred Wegener is a German scientist who hypothesized that the Earth was once made up of a single large landmass called Pangaea. Which of the following theories did Wegener propose?

• Continental Drift Theory

• Continental Shift Theory

• Plate Tectonics

• Seafloor Spreading Theory

In 1912, Alfred Wegener proposed a theory that the Earth is once a single landmass. What is the name of the Mesozoic supercontinent that consisted of all the present continents?

• Eurasia

• Laurasia

• Pangaea

• Gondwanaland

Which of the following was NOT used by Wegener as evidence of continental drift?

• Evidence of glaciation on widely separated continents.

• Fossils that were common to many continents.

• The geometric fit of the continents.

• Magnetic anomalies on the seafloor.

If all the inner layers of the Earth are firm solid, what could have happened to Pangaea?

• It remained as a supercontinent.

• It would have become as it is today.

• It would have slowly disappeared in the ocean.

• It would have stretched and covered the whole world.

Fossils of extinct tropical plant Glossopteris were found in Antarctica. Which of the following could best explain this?

• Antarctica was once located in/or near the equator.

• Glossopteris can live in very cold environment.

• Nothing, everything is purely accidental.

• There were massive and strong typhoons during the pre-historic time that might cause the scattering of fern’s spores in different continents.