How Do Magnetic Properties of Seafloor Rocks Support the Theory

question 28

Multiple Choice

How do magnetic properties of seafloor rocks support the theory of plate tectonics?

• A)As they cool, the rocks record reversals of magnetic north.
• B)The magnetic properties of the rocks indicate where the seafloor is thickest and therefore oldest.
• C)The magnetic field changed the chemical composition of the rocks through time, revealing plate movement.
• D)The magnetized rocks first revealed where mid-ocean ridges were.

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Definitions:

Potentiation

The enhancement of a conditioned response (CR) to a nonsalient stimulus when a salient stimulus is also paired with the unconditioned stimulus (UCS).

Acquisition of Extinction

The process in conditioning when the conditioned response is reduced and eventually disappears as the conditioned stimulus is no longer paired with the unconditioned stimulus.

SOP

Standard Operating Procedure; a set of step-by-step instructions compiled by an organization to help workers carry out complex routine operations.

Mackintosh's Attentional Theory

A theory proposing that the allocation of attention during learning is influenced by the predictability of stimuli, affecting conditioning strength.