The Highest Grade of Coal Is

question 20

Multiple Choice

The highest grade of coal is

• A)anthracite.
• B)bituminous.
• C)lignite.
• D)peat.

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Definitions:

Color Constancy

The perceptual property that ensures an object appears the same color under varying lighting conditions.

Perceptual Constancy

The ability of the visual system to perceive objects as having constant shape, size, and color despite changes in angle, distance, and lighting.

Room

A defined space within a building or structure intended for occupancy or specific activities.

Color Constancy

The perceptual phenomenon where the color of an object appears the same under varying lighting conditions.