What Environmental Features Were Shared by the Early River Valley

question 28

Multiple Choice

What environmental features were shared by the early river valley civilizations?

• A) warm and dry climate, dry soils, seasonal flooding, and irrigation
• B) cool and wet climate, dry soils, seasonal flooding, and irrigation
• C) warm and dry climate, wet soils, seasonal flooding, and irrigation
• D) warm and wet climate, wet soils, seasonal flooding, and irrigation

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Definitions:

Motion Parallax

A depth cue that involves the difference in speed of movement of images across the retina as one moves through the environment.

Shape Constancy

The perceptual tendency to perceive an object as having the same shape regardless of its orientation or the angle from which it is viewed.

Figure-ground Constancy

A visual perception principle where an object (figure) is perceived distinctly from its surrounding area (ground).

Phi Phenomenon

The perception of unbroken movement created by quickly viewing a series of independent objects one after another, known as an optical illusion.