QZ 58 ocean floor profile & plate tectonics

Created by a divergent boundary.

• Rocky Mountains
• Mariana Trench
• Mid Atlantic ridge

Which layer of the Earth is the thinnest?

• mantle
• outer core
• inner core
• crust

During sea floor spreading, molten material rises up from the mantle...

• along the continents
• at the mid ocean ridges
• deep ocean trenches
• at north and south poles

Which of the following is where one plate slides under another plate?

• submarine zone
• divergence zone
• subduction zone
• lower zone

The area around the pacific plate where boundaries form is called...

• death ring
• fire zone
• ring of fire
• zone of fire

What happens to temperature as you go deeper in the Earth?

• decreases
• increases
• fluctuates
• remains the same

Which ocean is expanding due to a mid-ocean ridge?

• Indian
• Dead Sea
• Atlantic
• Artic

What type of stress is associated with a convergent boundary?

• tension
• shearing
• compression
• depression

What is a divergent boundary? 

• two plates moving towards each other
• two plates rubbing side to side
• two plates moving away from each other
• happens in the lithosphere

What is one piece of evidence of seafloor spreading? 

• age of the rocks
• old rock pushes new rock to the side
• scientist can use sonar
• subduction