The Ice Age in the Americas

question 29

Multiple Choice

The Ice Age in the Americas:

• A) Made it easier for humans to migrate westward from Alaska.
• B) Probably prevented southward migration over land until a pathway was cleared across the area of modern Alberta.
• C) Prevented migration over water or by rafts, canoes, or boats because of the ice.
• D) Resulted in the inhabitants of the Americas having remarkably similar languages and mitochondrial DNA.

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Definitions:

False Confidence

An unfounded belief in one's abilities or outcomes, which can lead to taking undue risks or making poor decisions.

Glass Ceiling Effect

An invisible barrier limiting career advancement of women and members of visible minorities.

Stereotyping

The oversimplified and generalized perception or judgment of a group of people based on common traits or attributes.

Psychological Contract

An unwritten agreement that reflects the mutual beliefs, perceptions, and informal obligations between an employer and its employees.