River transportation and deposition

• What are the four processes of erosion in rivers?

  Hydraulic action, corrosion, abrasion, attrition
• What is hydraulic action in river erosion?

  Water force wears away riverbed and banks
• How does corrosion contribute to river erosion?

  It involves chemical reactions wearing away materials
• What is the difference between corrosion and abrasion?

  Corrosion is chemical, abrasion is physical scraping
• What is attrition in the context of river erosion?

  Rocks become smaller and rounder by colliding
• What are the four processes of transportation in rivers?

  Traction, saltation, suspension, solution
• What is traction in river transportation?

  Heaviest materials roll along the riverbed
• How does saltation occur in river transportation?

  Sand-sized particles bounce along the riverbed
• What happens during suspension in river transportation?

  Small particles are carried by turbulent water
• What is solution in the context of river transportation?

  Minerals dissolve in water and are carried
• When does deposition occur in a river?

  When a river loses velocity and energy
• What are the key processes of river erosion, transportation, and deposition?

  • Erosion: Hydraulic action, corrosion, abrasion, attrition
  • Transportation: Traction, saltation, suspension, solution
  • Deposition: Occurs when river loses velocity and energy
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