Mass Extinctions Have Occurred in the Last

question 35

Multiple Choice

Mass extinctions have occurred in the last .

• A) five times; 4.5 million years
• B) six times; 4.5 billion years
• C) only once; 66.5 million years
• D) five times; 450 million years

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Definitions:

Market Revolution

The dramatic increase in exchange of goods and services in the 19th century U.S., facilitated by advancements in transportation, commercialization, and industrialization.

Economic Opportunities

Prospects for participation in economic activities that can lead to employment and financial success.

Cult of Domesticity

A 19th-century ideology in the United States and Britain that glorified women's roles in home-making and child-rearing, emphasizing piety, purity, domesticity, and submissiveness.