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