What Led to the Discovery of Mid-Ocean Ridges

question 20

Multiple Choice

What led to the discovery of mid-ocean ridges?

• A) The sinking of the Titanic
• B) Underwater testing of atomic bombs
• C) Military maps of the seafloor created during World War II
• D) Measurements of ocean depth performed by scientists in the 1920s

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Definitions:

Procedural Memory

A type of long-term memory involved in the learning of skills and tasks that can be performed without conscious thought.

Echoes

Repetitive sounds that are heard after the original sound has been made, typically as a result of the reflection of sound waves.

Limbic System

A complex system of nerves and networks in the brain, involved with instinct and mood, controlling basic emotions and drives.

Engram

An assumed electrical circuit in the brain that corresponds to a memory trace.