Review L1 & L2 - Chapter 14

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

True or false : Deep-ocean trenches are underwater canyons?

• False
• True

What did scientists use to map the depth of the ocean floor?

• echo sounder

• seafloor sounder

• tape measure

• ruler

What was Alfred Wegener's hypothesis called?

• The Pangea 
• Moving Continents 
• The Continental Drift
• Techtonic Plates

What evidence helped Wegener support his theory?

• Climate
•  Fossils
• Land Features
• All of the Above

What evidence helps scientists show how sea floor spreading occurs?

• Ocean Floor Material
• Magnetic Stripes
• Drilling Samples
• All of the Above

The deepest part of the ocean; long, narrow ditches

• Tectonic plates
• Trenches
• Divergent boundary
• Continental shelves

New crust is always formed at the...

• mid-ocean ridge
• deep-ocean trench
• asthenosphere

What is the name for a supercontinent?

• A. Pang
• B. Panga
• C. Pangaea
• D. Pangenetic

Continental drift suggests that

• Continents do not move on Earth's surface

• Some continents move on Earth's surface

• Continents on Earth's surface are always moving

• Some continents move but only when it rains