AP US History: Geography & the Environment 3 — Questions and Answers
Question 1: How did the discovery of gold at Sutter's Mill in 1848 reshape California's geography and population?
- It triggered the Gold Rush, causing explosive population growth and rapid statehood (Correct answer)
- It led to the abandonment of San Francisco
- It caused the U.S. to return California to Mexico
- It shifted the capital to Sacramento immediately
Correct answer: It triggered the Gold Rush, causing explosive population growth and rapid statehood
The Gold Rush drew hundreds of thousands of migrants, swelling California's population and accelerating its 1850 admission as a state.
Question 2: The transcontinental railroad's route was shaped by geography in which key way?
- It avoided all rivers entirely
- Engineers sought low mountain passes and gentle grades through the Sierra Nevada and Rockies (Correct answer)
- It followed the Mississippi River north to south
- It crossed only flat coastal plains
Correct answer: Engineers sought low mountain passes and gentle grades through the Sierra Nevada and Rockies
Builders had to find feasible passes and grades through major mountain ranges, the hardest engineering challenge of the project.
Question 3: How did the arid climate of the West influence federal land policy after the Civil War?
- It led to the Homestead Act's 160-acre plots, often too small for dry-land ranching (Correct answer)
- It eliminated all federal land sales
- It forced the government to ban irrigation
- It made farming impossible everywhere west of the Mississippi
Correct answer: It led to the Homestead Act's 160-acre plots, often too small for dry-land ranching
The Homestead Act's standard 160 acres suited the humid East but was often too small to survive in the dry West.
Question 4: The destruction of the bison herds in the late 1800s had what environmental and political consequence?
- It increased Native American independence
- It undermined Plains Indian cultures and aided their forced removal to reservations (Correct answer)
- It restored the prairie grasslands
- It ended the cattle industry
Correct answer: It undermined Plains Indian cultures and aided their forced removal to reservations
Near-extermination of the bison destroyed the economic and cultural foundation of Plains tribes, hastening confinement to reservations.
Question 5: Why were the Great Plains called the nation's breadbasket by the early 20th century?
- The region produced most American cotton
- New farming technology and rail access turned the grasslands into major wheat and grain producers (Correct answer)
- It had the only fertile soil in the country
- The federal government banned farming elsewhere
Correct answer: New farming technology and rail access turned the grasslands into major wheat and grain producers
Steel plows, railroads, and mechanization allowed the Plains to become a dominant region for wheat and grain.
Question 6: The Dust Bowl of the 1930s resulted primarily from
- A volcanic eruption in the Plains
- Drought combined with over-plowing of native grasses that exposed topsoil to wind erosion (Correct answer)
- Excessive rainfall flooding farmland
- An earthquake along the San Andreas Fault
Correct answer: Drought combined with over-plowing of native grasses that exposed topsoil to wind erosion
Years of plowing up drought-resistant native grasses left soil exposed, and severe drought caused massive dust storms.
Question 7: How did western water scarcity drive major federal projects like the Hoover Dam?
- To create recreational lakes only
- To provide irrigation, flood control, and hydroelectric power for arid regions (Correct answer)
- To block Mexican access to the Colorado River
- To generate revenue from tourism alone
Correct answer: To provide irrigation, flood control, and hydroelectric power for arid regions
Dams like Hoover were built to manage scarce western water for irrigation, power, and flood control, enabling growth in the arid Southwest.
AP US History: Geography & the Environment 3
How did the discovery of gold at Sutter's Mill in 1848 reshape California's geography and population?