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Land formations

Land formations

• What causes avalanches?
  
  
• Why are there cliffs?
  
  
• Where do diamonds come from?
  
  
• How big are oceans?
  
  
• Why is there sand?
  
  
• What is a volcano?
  
  
• What is an earthquake?
  
  
• What is the Bermuda Triangle?
  
  
• What is the tallest mountain in the world?
  
  
• Why is Australia an island?
  
  
• Why is sand white?
  
  
• Why is dirt brown?
  
  
• How do rocks form?
  
  
• How does quicksand work?
  
  
• What is a tundra?
  
  
• What are minerals?
  
  
• What is the highest point in North America?