Unit 3 Inside The Earth Test M

The Mesosaurus, a small freshwater reptile, lived 260 million years ago and is now extinct. Fossils of this reptile have been found in both South America and Southern Africa. Which of the following statements best explains why the fossils were found on both continents?

• At one time, the continents were joined together
• The reptile swam across the Atlantic Ocean
• People brought the reptile to South America

Name the layers of the Earth from the most dense to the least dense.

• CRUST, INNER CORE, OUTER CORE, MANTLE
• INNER CORE, OUTER CORE, MANTLE, CRUST
• OUTER CORE, INNER CORE, MANTLE, CRUST

Which statement best explains convection currents

• A rising of more dense material and sinking of less dense material
• A rising of less dense material and a sinking of more dense material
• Solids of different densities

Hot, less dense material below the Earth’s crust rises toward the surface at the mid-ocean ridges.

• Sea-Floor Spreading
• Contintital Drift
• Convergent Plate Boundary

Name this BOUNDARY. This boundary occurs when two tectonic plates collide with one another.

• Convergent Boundary
• Divergent Boundary
• Transform Boundary

At a transform plate boundary what type of stress should I expect to see?

• Shearing
• Tension
• Compression

The motion within the mantle which cause continental drift to occur.

• Convection Currents
• Sea Floor Spreading
• Shearing

Which type of stress/boundary occurs at this type of fault?

• Shearing/Transform
• Tension/Divergent
• Tension/Diffuse

Name this BOUNDARY. This boundary occurs when two tectonic plates slide past each other horizontally.

• Convergent Boundary
• Divergent Boundary
• Transform Boundary

An instrument that records vibrations in the ground and determines the location and strength of an earthquake.

• Seismograph
• Accelograph
• Richter Scale