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The Science of Sand Dune Formation
  • 1. What primary force contributes to sand dune formation?
A) Wind
B) Gravity
C) Ice
D) Water
  • 2. Which type of dune is characterized by a crescent shape?
A) Parabolic
B) Transverse
C) Barchan
D) Linear
  • 3. Which natural feature can stabilize sand dunes?
A) Mining
B) Farming
C) Vegetation
D) Urban development
  • 4. What term describes the transport of sand by wind?
A) Glacial drift
B) Hydraulic sorting
C) Aeolian sediment transport
D) Fluvial sedimentation
  • 5. What is the primary cause of dune shape changes over time?
A) Wind direction changes
B) Earthquakes
C) Temperature fluctuations
D) Rainfall patterns
  • 6. How does vegetation impact sand dune ecosystems?
A) Restricts growth
B) Provides stability and habitat
C) Increases sand loss
D) Decreases biodiversity
  • 7. How do sand dunes migrate?
A) By water flow
B) Due to wind erosion and deposition
C) By animal movement
D) Through plant growth
  • 8. Which factor can lead to dune erosion?
A) Gentle rainfall
B) Low temperatures
C) Light winds
D) Strong storms
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