The Primary Level of National Ambient Air Quality Standards (NAAQS)protects

question 17

Multiple Choice

The primary level of national ambient air quality standards (NAAQS) protects ________.

• A)flora
• B)human beings
• C)water bodies
• D)climate

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Definitions:

Difference Threshold

The minimal change in a stimulus that can just barely be detected by an organism.

Difference Threshold

The minimum difference in stimulation that a person can detect 50% of the time, also known as the "just noticeable difference" (JND).

Energy

The capacity to do work or the power derived from the utilization of physical or chemical resources.

Original Stimulus

The initial event or object that triggers a sensory or psychological response.