Chapter 14 Quiz Review Question #1 Q: What is mechanical weathering? A: Process by which rocks are broken down into smaller pieces by physical means. Question # 2 Q: Name at least 3 common agents of mechanical weathering. A: ice, plants, animals, gravity, running water, and wind. Question # 3 Q: What is abrasion? A: The grinding & wearing away of rock surfaces through the mechanical action of other rock or sand particles. Question # 4 Q: What is chemical weathering? A: Process by which rocks break down as a result of chemical reactions. Question # 5 Q: What are the 5 types of chemical weathering? A: Oxidation, hydrolysis, carbonation, organic acids, & acid precipitation. Question # 6 Q: What is produced when carbonic acid reacts with calcite ( a major component of limestone)? A: Calcium bicarbonate Question # 7 Q: What are the 4 agents that affect the rate of weathering? A: Rock composition, surface area, climate, & topography. Question # 8 Q: What weathering agents do lichens & mosses produce? A: Organic acids Question # 9 Q: If you increase the amount of surface area, how does that affect weathering? A: The larger the surface area, the higher the rate of weathering. Question # 10 Q: Sedimentary rocks that contain this weather most quickly? A: Rocks that contain calcite. Question # 11 Q: What type of climate has the fastest rate of weathering? A: Alternating hot and cold climates. Question # 12 Q: What is crop rotation? A: Farmers plant one type of crop one year and a different type of crop the next. Crop rotation stops erosion in its early stages. Question # 13 Q: What are the 3 major types of landforms that are a result of weathering & erosion? A: Mountains, plains, plateaus Question # 14 Q: Name at least 2 of the 4 soil conservation methods. A: contour plowing, strip-cropping, terracing, crop rotation. Question # 15 Q: How does gravity affect erosion? A: Creates mass movements such as creep, mudflows, slump, landslides, & solifluction. Question # 16 Q: What are soil horizons? A: A horizontal layer of soil that is clearly different from the layers above and below it. Question # 17 Q: What is oxidation? A: Process by which elements combine with oxygen. (Type of chemical weathering). Question # 18 Q: What is differential weathering? A: The process by which softer, less weather resistant rocks wear away at a faster rate than harder, more weather resistant rocks do. Question # 19 Q: Formations of potholes in streets during severe winters is what type of weathering? A: Mechanical Question # 20 Q: Halite in rocks dissolving in water is an example of what type of weathering? A: Chemical Question # 21 Q: What is erosion? A: The products of weathering are transported. Question # 22 Q: What are the four agents of erosion? A: Gravity, wind, glaciers, and water. Question # 23 Q: What is a loose mixture of rock fragments and organic material that can support growth of vegetation called? A: Soil Question # 24 Q: Which would you expect to have a faster rate of weathering, mountainsides or flat land. A: Mountainsides Question # 25 Q: What is sheet erosion? A: Process by which water flows over a layer of soil and removes the topsoil.