What Have Scientists Concluded About Earth Based on the Average

question 39

Multiple Choice

What have scientists concluded about Earth based on the average density of Earth and the average density of the crust?

• A)that the crust must be made of heavy metals in order to account for the missing density
• B)that the core must be made of heavy metals in order to account for the missing density
• C)that the center and the core are the same density
• D)that their understanding of what lies at the center of Earth is faulty

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Definitions:

Perception Of Occluded Objects

The cognitive ability to recognize and understand objects even when they are partially obscured from view.

Eye Movements

The movement of the eyes that enables visual tracking and scanning of the environment.

Sucking Behaviors

Reflexive actions in infants for nutrition and comfort, which are essential for feeding from birth.

Habituation Studies

Research methods used to study how repeated exposure to a stimulus reduces the response of an individual over time.