Plate Tectonics and Earth's Interior Post-Assessment

Front

Who came up with the idea that all the continents were once joined together?

Back

Alfred Wegener

Front

What is Pangaea?

Back

a supercontinent that contained all the continents

Front

How is the existence of Lystrosaurus fossils in Africa, Antarctica, and India explained by the existence of Pangaea?

Back

Africa, Antarctica, and India used to be joined together into a single landmass.

Front

What is the theory of continental drift?

Back

The continents move slowly over Earth's surface.

Front

What clue supported the continental drift hypothesis? Options: Fossils of animals have been found on continents separated by oceans, Similar coal beds and rock structures have been found on different continents, A puzzle-like fit of all the continents.

Back

All answers are correct

Front

What is the source of most of the information scientists have about Earth's interior? Options: deep wells drilled in the ground, satellite imaging, analysis of earthquake waves, studies of landforms

Back

analysis of earthquake waves

Front

Which layer of the Earth is made up of tectonic plates? Options: the core, the asthenosphere, the lithosphere, the mantle

Back

the lithosphere

Front

What defines the mechanical layers of the Earth?

Back

how the layers move and behave due to their strength and the pressure that they are under

Front

Which mechanical layer of the Earth is made up of solid rock that is so hot it has the quality of plastic, or is soft enough to flow?

Back

asthenosphere

Front

As scientists explore deeper and deeper into Earth's crust, what have they noticed about temperature and pressure?

Back

both temperature and pressure increase