FINAL EXAM PRACTICE

As the Earth formed the ______________ elements sank to the center.

• denser

• less dense

The order of the layers from LEAST dense to MOST dense is....

• inner core, outer core, asthenosphere, mesosphere, lithosphere, crust

• crust, lithosphere, asthenosphere, mesosphere, outer core, inner core

• inner core, crust, lithosphere, asthenosphere, mesosphere, outer core

• asthenosphere, crust, lithosphere, mesosphere, outer core, inner core

Why do the plate move?

• Plates move because landforms cause them to move in different directions.

• Plates move because they are slowly expanding and growing larger.

• Plates move because Earth's interior is slowly cycling.

• Plates move because of the weight of the oceans pressing on parts of Earth's surface.

The Mesosaurus helped proved that

• climate has changed

• migration across the ocean was possible

• it came to existence all over separate continents

• South American and Africa were once joined together

Where is the YOUNGEST oceanic crust?

• A

• B

• C

• D

The Himalayas (mountain range) are a result of

• two continental crusts colliding

• continental and oceanic crusts colliding

• two oceanic crusts colliding

Choose the best answer! Earthquakes occur along ______.

• the mountain ranges

• the coasts

• the ring of fire

• the plate boundaries

Why doesn't S-waves travel straight through the Earth?

• Seismic stations are not set up for that kind of data

• the Earth's core is large

• some parts of the core is a liquid

• the crust is too solid

What type of plate boundary has the most dangerous and destructive volcanoes?

• convergent

• divergent

• transform

What are the three most common gases in volcanic emissions?

• Water vapor, iron oxide, Sulphur dioxide

• hydrogen, helium, magnesium

• Water vapor, Carbon dioxide, Sulphur dioxide

• chlorine, water vapor, carbon monoxide