EROSION AND WEATHERING

• What are erosion and weathering?


  The processes in which the rocks are broken down into fine particles
• What is erosion?


  the process in which rock particles are carried away by wind and water
• What does weathering do?

  Degrades the rocks without displacing them
• what is weathering?


  the decomposition of rocks, soils and minerals by direct contact with the atmosphere
• what is erosion?


  The displacement of solids by wind ,water and ice
• What is one difference between weathering and erosion?

  erosion- the eroded material is displaced

  weathering- the weathered materials are not displaced
• what are the different types of erosion?


  water, wind, ice, thermal and gravity erosion
• what are the different types of weathering?

  include physical, chemical and biological weathering
• what are some causes of erosion VS weathering?


  • EROSION- wind, water, ice and human activity
  • WEATHERING- caused by atmospheric factors like air pressure
• what is hydraulic action?


  Breaking down of rock by the force of water and expansion of compressed air in joints and cracks
• What is caviation?


  erosion of rock by tiny jets of water IMPLODING under pressure
• give a detail about attrition?

  attrition takes place at the coast but it is not directly responsible for the erosion of a coastline
• what does ATTRITION refer to?


  the gradual wearing down of rock particles by impact and abrasion, as the pieces of rock are moved by waves, tides and currents

  This process gradually makes stones rounder and smoother