Native Americans Were Able to Prevent the Encroachment of Trees

question 69

Multiple Choice

Native Americans were able to prevent the encroachment of trees and maintain the tallgrass prairies by

• A) establishing an extensive irrigation system to increase soil moisture, thus favoring grasses.
• B) restricting the migrations of bison, which caused the bison to browse heavily on tree seedlings and thus kill them.
• C) setting fires periodically to kill the trees.
• D) plowing much of the land for agriculture.
• E) clear-cutting the forests for timber and fuel.

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Definitions:

Neuroticism

A personality trait associated with a higher tendency towards anxiety, depression, self-doubt, and other negative feelings.

Big Five

A personality model outlining five broad trait dimensions: openness, conscientiousness, extraversion, agreeableness, and neuroticism.

Daily Stressors

The routine challenges and minor hassles encountered on a day-to-day basis that contribute to overall stress levels.

Conscientiousness

A personality trait characterized by organization, dependability, discipline, and a high level of thoughtfulness about others and striving for achievement.