Unit 3 - Dynamic Earth

On the map below, points A through D represent locations on Earth's surface.
Which location is positioned over a mantle hot spot?

• A
• B
• C
• D

The formation of the Canary Islands was primarily caused by their location near a

• subduction zone 
• mantle hot spot
• divergent boundary
• transform fault

The Mariana Trench was most likely created by the

• convergence of the Philippine and Pacific plates

• divergence of the Eurasian and Philippine plates

• sliding of the Pacific Plate past the North American Plate

• movement of the Pacific plate over the Hawaii hot spot

The map below shows a part of Earth’s surface. Points A through D are locations on the ocean floor.
At which location is the temperature of the ocean floor bedrock most likely highest?

• A
• B
• C
• D

Which type of tectonic plate boundary is located at mid-ocean ridges?

• CONVERGENT 
• TRANSFORM
• DIVERGENT
• COMPLEX

The diagram below shows the magnetic polarity preserved by minerals within the bedrock of the oceanic crust near the Mid-Atlantic Ridge. Letters A, B, C, and D represent locations in the ocean-floor bedrock.
The most recently formed bedrock is found at location

• A
• B
• C
• D

__________ metamorphism occurs when rock formations in the crust collide and build large amounts of heat and pressure.

• Regional

• Forced

• Foliated

• Contact

__________ metamorphism occurs when magma heats the surrounding rock and changes it.

• Regional

• Forced

• Foliated

• Contact

Which texture best describes the metamorphic rock shown?

• bioclastic

• nonfoliated

• foliated

• clastic

Sedimentary rocks are formed by ___.

• existing rocks are baked and squeezed by pressure
• small pieces of rock are compacted and cemented together
• magma or lava cools and hardens
• igneous rocks are broken into pieces