Level A Plate Tectonic Theory & Evidences

Front

What are the two layers which affect the movement of plate tectonics?

Back

Asthenosphere and lithosphere.

Front

What is the driving force that facilitates the movement of lithospheric plates?

Back

Convection current in the mantle.

Front

What can be inferred from the continuous movement of the lithospheric plates over the asthenosphere?

Back

The continents will not be located in the same place as they are now.

Front

What matching evidence did Wegener find in Africa and South America?

Back

Rock layers matching in thickness and composition with the same fossils found within.

Front

Which of the following is NOT evidence to support the theory of plate tectonics?

Back

Sand Erosion.

Front

Define lithosphere.

Back

The rigid outer layer of the Earth, consisting of the crust and upper mantle.

Front

Define asthenosphere.

Back

The semi-fluid layer of the mantle beneath the lithosphere that allows for the movement of tectonic plates.

Front

What is plate tectonics?

Back

A scientific theory explaining the movement of the Earth's lithosphere which is divided into tectonic plates.

Front

What is the significance of convection currents in the mantle?

Back

They are the driving force behind the movement of tectonic plates.

Front

What evidence supports the theory of continental drift?

Back

Fossil similarities across continents, matching geological formations, and climate evidence.