Earth's Structure & Continental Drift Review

Front

What is the main evidence used to support the continental drift theory?

Back

Matching shapes of coastlines and distribution of fossils and rock formations.

Front

Which layer of the Earth is responsible for convection currents?

Back

Mantle.

Front

Which layer of the Earth is rigid and made up of the crust and upper mantle?

Back

Lithosphere.

Front

What is the main difference between the lithosphere and asthenosphere?

Back

The lithosphere is rigid and solid, while the asthenosphere is plastic and can flow.

Front

What is the main difference between continental and oceanic crust?

Back

Composition and thickness.

Front

What is the Earth's outermost layer called?

Back

Crust.

Front

What is the layer beneath the lithosphere that is semi-fluid?

Back

Asthenosphere.

Front

What is the primary component of the Earth's inner core?

Back

Solid iron and nickel.

Front

What geological process is responsible for the movement of tectonic plates?

Back

Convection currents in the mantle.

Front

What is the theory that explains the movement of continents over geological time?

Back

Continental Drift.