If the Atlantic Ocean Floor Is Getting Wider,why Is the Earth

question 35

Multiple Choice

If the Atlantic Ocean floor is getting wider,why is the Earth not becoming larger?

• A) Actually, the Atlantic Ocean floor is not getting wider.
• B) Old ocean floor sinks at subduction zones (trenches).
• C) It is becoming denser, so it takes up no more space.
• D) It becomes part of the edge of the adjacent continent.
• E) It melts at oceanic transform faults.

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Definitions:

Short-term Memory

The part of memory where small amounts of information can be held for a short period of time, typically a few seconds to a minute.

Semantic Memory

General knowledge, as opposed to episodic memory.

Thalamus

An area near the center of the brain involved in the relay of sensory information to the cortex and in the functions of sleep and attention.

Limbic System

A complex system of nerves and networks in the brain, involved with instinct and mood. It controls the basic emotions (fear, pleasure, anger) and drives (hunger, sex, dominance, care of offspring).