John Studies the Fertility and Migration Trends of Countries Around

question 27

Multiple Choice

John studies the fertility and migration trends of countries around the world. John would be classified as a(n) _____________________.

• A) environmentalist
• B) geographer
• C) demographer
• D) philosopher

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Definitions:

Negative Afterimages

Visual illusions that occur after looking at a brightly colored object for a prolonged period and then looking away, resulting in seeing the complementary color.

Tinted Glasses

Eyewear with lenses that are colored or darkened to reduce brightness and protect the eyes from glare.

Trichromatic Theory

A theory of color vision that states the human eye has three types of receptors with differing sensitivities to light wavelengths, corresponding to red, green, and blue colors.

Three Types Of Cones

Photoreceptor cells in the retina of the eye that are responsible for color vision; typically sensitive to red, green, or blue light.