NAEP Geography Grade 4 — Questions and Answers
Question 1: The Sahara Desert's location on the northern continent of Africa is primarily due to which atmospheric factor?
- Cold Benguela ocean current
- Persistent high-pressure cells near 30° latitude (Correct answer)
- Rain shadow effect of the Atlas Mountains
- Monsoon patterns from the Indian Ocean
Correct answer: Persistent high-pressure cells near 30° latitude
The Sahara exists largely because of persistent subtropical high-pressure cells near 30°N that cause air to sink, warm, and evaporate moisture, preventing rainfall.
Question 2: Which term describes the practice of building terraces on hillsides to create flat planting surfaces and reduce soil erosion?
- Crop rotation
- Contour farming
- Terrace farming (Correct answer)
- Strip mining
Correct answer: Terrace farming
Terrace farming cuts step-like platforms into hillsides to create flat agricultural land and slow water runoff, reducing soil erosion on steep slopes.
Question 3: Which U.S. geographic region is most known for its karst topography, featuring sinkholes and limestone caves?
- Pacific Northwest
- Central Florida and parts of Tennessee/Kentucky (Correct answer)
- Great Plains of Kansas
- New England coast
Correct answer: Central Florida and parts of Tennessee/Kentucky
Central Florida and the Tennessee-Kentucky area contain extensive karst landscapes formed when slightly acidic groundwater dissolves limestone bedrock, creating sinkholes and cave systems.
Question 4: Population density is calculated by dividing a region's total population by its what?
- Number of cities
- Total land area (Correct answer)
- Gross domestic product
- Number of households
Correct answer: Total land area
Population density is the number of people per unit of land area (such as people per square mile), calculated by dividing total population by total land area.
Question 5: Which geographic concept explains why coastal cities in the Pacific Northwest experience more moderate temperatures than inland cities at the same latitude?
- Orographic lift
- Maritime influence (Correct answer)
- Continental climate
- Urban heat island
Correct answer: Maritime influence
Maritime influence causes coastal areas to have more moderate temperatures because oceans absorb and release heat slowly, buffering extreme temperature swings.
Question 6: A push factor in human migration is best defined as which of the following?
- An attraction that draws people toward a new location
- A condition that drives people away from their current location (Correct answer)
- A government policy that controls migration
- A geographic barrier preventing movement
Correct answer: A condition that drives people away from their current location
Push factors are negative conditions in a person's current location — such as poverty, conflict, or natural disasters — that motivate them to leave.
Question 7: The process by which wind carries and deposits sand to form dunes is called what?
- Glacial deposition
- Fluvial transport
- Aeolian deposition (Correct answer)
- Mass wasting
Correct answer: Aeolian deposition
Aeolian deposition refers to the process by which wind transports and deposits sediment such as sand and silt, forming landforms like dunes and loess deposits.
NAEP Geography Grade 4
The Sahara Desert's location on the northern continent of Africa is primarily due to which atmospheric factor?