Final Exam Review

Plate motion is caused partly by

• magnetic reversals

• convection currents

• continental drift

• volcanic hotspots

What is the name of the theory explaining the moving of continents AND its internal processes?

• continental drift

• plate tectonics

• Pangea

• convection

What is the outermost layer of the Earth called?

• inner core

• outer core

• mantle

• crust

Earthquakes release ________________ that has built up in rocks.

• water

• magnesium

• stress

• electricity

What is the age of the Earth?

• 570 million years

• 1.1 billion years

• 4.6 billion years

• 9.5 billion years

What is the name of the scale used to measure earthquakes?

• seismograph

• Morelli

• magnitude

• Richter

What happens when two ocean plates collide?

• both plates sink into the asthenosphere

• the colder, denser plate sinks

• both plates fold the rock between them

• one plate slides past the other

At which boundary is the crust neither formed nor destroyed?

• convergent boundary

• divergent boundary

• transform boundary

• subduction zone

A mineral is a substance that forms:

• from rocks

• in nature

• from one element

• in liquid

Which of the following is the least reliable clue to a mineral's identity?

• color

• density

• hardness

• luster