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