The Density of Earth's Crust, Mantle, and Core Increases Moving

question 33

Multiple Choice

The density of Earth's crust, mantle, and core increases moving toward Earth's center because

• A)Earth's elements are distributed evenly throughout its interior.
• B)Early in Earth's history, it separated into layers according to density.
• C)Earth is plastic throughout its structure today and in the past.
• D)The charged particles flowing in the outer core repel the lighter elements found at Earth's surface.

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Definitions:

The Bell Curve

A book that argues for the existence of a relationship between race, intelligence, and economic status, highly controversial for its interpretations of IQ data.

Cognitive Ability

Cognitive ability is the capacity of the brain to process, reason, remember, and relate information.

Biased

Showing an unreasonable preference or prejudice for or against something.

Span Memory

Also known as memory span, it refers to the longest list of items (like digits, letters, or words) that a person can remember and repeat in correct order after one presentation.