EES Unit 3 Review

What is the hypothesis of continental drift?

• The idea that the continents have been stationary throughout Earth's history

• The theory that the continents are floating on a sea of molten lava

• The hypothesis that the continents have moved over geologic time and were once joined together in a single landmass

• The concept that the Earth is gradually expanding, causing the continents to drift apart

What was the name of the supercontinent mentioned in the continental drift hypothesis?

• Gondwanaland

• Laurasia

• Pangaea

• Rodinia

Which process is responsible for the constant production of new ocean floor?

• Subduction

• Elastic rebound

• Continental drift

• Seafloor spreading

Why was Alfred Wegener's theory of continental drift not initially accepted by the scientific community?

• He was not a geologist

• He could not provide a mechanism for the movement of continents

• His evidence was based solely on the distribution of fossils

• The theory contradicted the idea of a static Earth

At which point A-D would you anticipate the rocks to be the YOUNGEST in age?

• A

• B

• C

• D

In which cross-section do the arrows best show the convection occurring within the asthenosphere beneath line XY?

• 1

• 2

• 3

• 4

What is the Ring of Fire?

• A volcanic belt around the Pacific Ocean where most earthquakes and volcanoes occur

• A zone in the Atlantic Ocean with frequent hurricanes

• A circle of fire performers popular in festivals

• A geological term for the hottest layer in Earth's interior

What is a Subduction Zone?

• A region where hot magma rises to the surface

• An area where two tectonic plates slide past each other

• A zone where one tectonic plate moves under another, often causing earthquakes

• The central area of a volcano where lava is expelled

What is a Hot Spot in geology?

• A region with a high number of geothermal springs

• A location on Earth's surface that has experienced multiple earthquakes

• An area on Earth's crust directly above a mantle plume of hot magma

• A popular tourist destination with volcanic activity

The map above shows the distribution of major earthquake epicenters over a six-year period. What conclusion can best be inferred from the data shown on the map?

• Most earthquakes occur in the center of continents

• Most earthquakes occur at the center of tectonic plates

• Most earthquakes occur along plate boundaries

• Earthquakes are generally evenly distributed across Earth’s surface