Seafloor Spreading

The oldest seafloor is located?

• Closest to the mid-ocean ridge

• Farthest from the mid-ocean ridge

True or False : Sea-floor Spreading adds new material to the ocean floor?

• True
• False

The oceanic crust is pushed aside on both sides of the 

• Continent's edge
• Deep-ocean trench
• Mid-ocean ridge

New crust is always formed at the...

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

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

What technology was used during WWII to detect enemy submarines and produce the first map of the seafloor?

• Sonar
• Radar
• GPS

Undersea mountain range.

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

True or False : Sea-floor Spreading adds new material to the ocean floor?

• True
• False

Sea-floor spreading begins at the

• Deep ocean trench

• Mid-ocean ridge

• Continent's edge

Where would the oldest rock be found?

• L
• M
• N
• O