716 Test mp3 2018

Massive pieces of land that are part of the Earth's crust and upper mantle

• Tectonic plates
• Trenches
• Divergent boundary
• Continental shelves

What causes the crust to move?

• convection
• conduction
• tension
• radiation

The zone where one plate slides under another is called the

• Convergent zone
• Subduction zone
• Transform zone
• Mantle zone

When looking at mid ocean ridges the oldest rocks are 

• In the middle
• Found close to the rift zone
• Found far from the mid ocean ridges

Undersea mountain range.

• Rift
• Mid-ocean ridge
• seafloor spreading
• Continental drift

Process by which new ocean lithosphere forms.

• Seafloor spreading
• Continental drift
• Mid-ocean ridge
• Rift

The THICKEST sea floor is located? 

• Closest to the mid-ocean ridge
• Farthest from the mid-ocean ridge

The OLDEST seafloor is located? 

• Closest to the mid-ocean ridge
• Farthest from the mid-ocean ridge

What are Mid-Ocean Ridges?

• A chain of underwater waterfalls 
• A chain of underwater volcanos
• A chain of underwater mountains
• A chain of underwater rocks

This is an example of -

• convergent
• divergent
• transform