Earth Can Be Divided into Four Different Spheres

question 66

Essay

Earth can be divided into four different spheres. List these spheres and give a description of each.

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Definitions:

Conditioned Response (CR)

The learned reaction or response to a previously neutral stimulus, after the stimulus has been repeatedly presented along with an unconditioned stimulus.

Unconditioned Stimulus (US)

A stimulus that naturally triggers a reflexive response without prior learning.

Extinction

In behavioral psychology, the gradual weakening and disappearance of a conditioned response when the conditioned stimulus is presented without the unconditioned stimulus.

Spontaneous Recovery

A phenomenon in learning where a previously extinguished response reemerges after a period without exposure to the conditioned stimulus.