Which of the Following Events in U

question 19

Multiple Choice

Which of the following events in U.S.history did not create economic growth (shift the production possibilities curve outward) ?

• A)The Louisiana Purchase in 1803 that nearly doubled the land mass of the United States.
• B)Inventions of machines such as Cyrus McCormick's mechanical reaper.
• C)The introduction of the moving assembly line in automobile production by Henry Olds.
• D)The dramatic reduction in the U.S.unemployment rate from 1939 to 1941 as we prepared to enter World War II.

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Definitions:

Nutrient Poor Soil

Soil that lacks essential nutrients required for plant growth.

Herbivores

Animals that primarily consume plant material.

CAM Plants

Plants that use Crassulacean Acid Metabolism, a photosynthetic adaptation to arid conditions, allowing them to minimize water loss.

Stomata

Tiny openings or pores in plant leaves and stems that facilitate gas exchange.