The Minimum Standards Set for Water Purity by the Clean

question 18

True/False

The minimum standards set for water purity by the Clean Water Act of 1972 do not include "fishable and swimmable" water.

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Definitions:

Texture Gradient

This visual cue indicates depth by the gradual change in appearance of objects as they move further away, with details becoming denser and finer the farther they are from the viewer.

Relative Size

A perceptual cue that allows the determination of the size of an object in comparison to another object of known size.

Interposition

A visual cue in which an object that blocks part of another object is perceived as being closer to the observer.

Continuity

The state or quality of being continuous, unbroken, or consistent over time.