Global Warming of the Past Century, and Especially in the Past

question 99

Multiple Choice

Global warming of the past century, and especially in the past decade, is at least partly a consequence of human activities that have increased ____ in the atmosphere.

• A)smog
• B)PCBs
• C)ozone
• D)"greenhouse gases"

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Definitions:

Unconditioned Response

A natural, automatic reaction to a stimulus, not learned or based on past experience.

Unconditioned Stimulus

In classical conditioning, this refers to a stimulus that naturally and automatically triggers a response without any prior learning.

Neutral Stimulus

A stimulus that initially produces no specific response other than focusing attention, which can become a conditioned stimulus when used in classical conditioning.

Unconditioned Stimulus

In classical conditioning, an event that elicits a natural, reflexive response without the necessity of prior learning.