Weathering and Erosion

What are the main causes of erosion?

• Wind, soil, ice, tornadoes
• Wind, water, gravity, ice
• Water, ice, volcanic eruptions
•  Wind, glaciers, plate movement, gravity             

What is erosion?

• The sinking of land
• The settling of sediment in a new location
• The movement and transport of sediment
• The breakdown of rocks             

What is weathering? 

• The breakdown of rocks
• The settling of sediment in a new location
• The sinking of land
• The movement and transport of sediment

Which of the following is not an agent of mechanical weathering? 

• Carbon Dioxide
• Freezing & Thawing
• Plant Growth 
• Abrasion 

 Which of the following would be a solution to stream bank erosion?

• Sea Breakers
• Levees 
• Beach Nourishment 
• Plants

Which of the following is NOT a prevention method for Soil Erosion?

• Contour Plowing
• Terracing
• Riprap 
• Cover Crops 

Which of the following scenarios describes chemical weathering?

• Rocks that have been carried by streams and have become smaller and more rounded
• Formation of potholes in streets during severe winters
• The oxidation of minerals that contain iron
• Tree roots cracking the concrete foundation of a house

Which of the following is NOT a form of Erosion? 

• Soil 
• Chemical 
• Coastal 
• Stream-bank 

Which of the following is formed by weathering and erosion? 

• Sedimentary Rock 
• Metamorphic Rock 
• Sediment 
• Igneous Rock 

What are the two factors that affect the rate of weathering? 

• Rock Type & Climate           
• Rock Size & Rock Type
• Rock shape & Rock Type
• Rock Size  & Climate