Earth’s magnetic field can reverse its polarity at irregular intervals.  True or false?

An earthquake’s _____ is a measure of how it impacts people and their structures.

Most earthquakes at convergent plate boundaries are _____.

The Richter scale measures _____.

The principle of continents being in a buoyant equilibrium is called _____.

Fractures in bedrock along which movement has taken place are called _____.

The decomposition of rock from exposure to water and atmospheric gasses is called _____.

There is no necessary relationship between ridges and valleys on Earth’s surface and anticlines and synclines below ground.  True or false?

The sliding of the sea floor beneath a continent or island arc is called _____.

The southern supercontinent is called _____.