In 1900,the Most Commonly Used Source of Energy in the United

question 9

Multiple Choice

In 1900,the most commonly used source of energy in the United States was ________; today it is ________.

• A) coal; oil
• B) oil; natural gas
• C) coal; natural gas
• D) nuclear; hydrothermal

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Definitions:

Shaping

A method of positively reinforcing behaviors that are successively closer to the desired behavior.

Extinguish

In the context of psychology, to gradually reduce or eliminate a learned response by ceasing to reinforce the behavior.

Loudness

The perception of the intensity or volume of a sound, influenced by its amplitude and frequency, and measured in decibels.

Puff of Air

A stimulus often used in psychological experiments to trigger blink reflex or to study sensory processing.