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Hire A Tutor For Your Homework www.helpingtutors.com Alternatevely contact me for it's solution at flat rate of $20 licservernoida@gmail.comSo, far I have a lot of my…
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Hire A Tutor For Your Homework www.helpingtutors.com Alternatevely contact me for it's solution at flat rate of $20 licservernoida@gmail.comSo, far I have a lot of my answers for the Module 14 Questions. However, I am really not sure if they are correct. Looking for some much needed help with this assignment LAB 4: WEATHERING AND MASS WASTING Note: Please refer to the GETTING STARTED module to learn how to maneuver through, and how to answer the lab questions, in the Google Earth ( ) component. KEY TERMS You should know and understand the following terms: Avalanche Frost wedging Rockslide Carbonation Hydrolysis Root wedging Chemical Weathering Landslide Salt crystal growth Debris flow Mass wasting Soil creep Earthflow Mechanical (Physical)Weathering Solifluction Exfoliation Mudflow Slump Frost heaving Oxidation LAB MODULE LEARNING OBJECTIVES After successfully completing this module, you should be able to the following tasks: Identify erosional processes and features created by weathering and mass wasting Identify depositional processes and features created by weathering and mass wasting Examine the processes that create mass wasting landforms Distinguish different weathering and mass wasting types Calculate slope Interpret the topographic profile of a landscape 1 INTRODUCTION This module examines weathering and mass wasting. Topics include physical weathering, chemical weathering, and mass wasting. While these topics may appear to be disparate, you will learn how they are inherently related. The modules start with four opening topics, or vignettes, which are found in the accompanying Google Earth file. These vignettes introduce basic concepts of the weathering and mass wasting. Some of the vignettes have animations, videos, or short articles that will provide another perspective or visual explanation for the topic at hand. After reading the vignette and associated links, answer the following questions. Please note that some links might take a while to download based on your Internet speed. Expand the INTRODUCTION folder and then check Topic 1: Introduction. Read Topic 1: Introduction Question 1: According to the website, which of the following factors does not influence the speed of landslides? A. B. C. D. Slope of ground Water content Volume of debris Time since last landslide Read Topic 2: Weathering Question 2: Other than the rock material, what are the two most important factors in chemical weathering? A. B. C. D. Water and slope of land Debris type and water Slope of land and temperature Water and temperature Read Topic 3: Mass WastingQuestion 3: What does the presence of lichen on boulders tell scientists? A. B. C. D. It tells us the parent material of the debris It tells us the relative time of a mass wasting event It tells us what the slope of the land used to be It tells us what the moisture content was at the time of the mass wasting event. Read Topic 4: Human Interaction 2 Question 4: Which of the following is not a characteristic of areas generally considered to be safe from landslides? A. B. C. D. On flat areas away from slopes On hard, non-jointed bedrock that has not moved in the past At the base of minor drainage hollows At the top or along the nose of ridges, set back from the tops of slopes Collapse and uncheck the INTRODUCTION folder. 3 GLOBAL PERSPECTIVE Double-click and select GLOBAL PERSPECTIVE. Figure 1 is a graph showing the dominant type of weathering based on annual precipitation and temperature. If a location has a mean annual temperature of 20°C and receives 190cm of precipitation yearly, you can plot these values (as denoted by the star) to see this location’s dominant weathering is strong chemical. For Questions 5 to 8, type the location information provided into the Search tab in Google Earth and press Enter. When you arrive at Figure 1. The geography of weathering (Arbogast 2nd Ed.). your destination, use the chart in Figure 1, in conjunction with Google Earth, to answer each question. The mean annual temperature and precipitation are provided respectively, in the parentheses. Question 5: A. B. C.D. Moderate chemical Strong chemical Moderate chemical with frost action Very slight weathering Question 6: A. B. C. D. What is the dominant weathering In Bangkok, Thailand (28°C, 145cm)? What is the dominant weathering in New Delhi, India (25°C, 80cm) Moderate chemical Strong chemical Moderate chemical with frost action Strong physical 4 Question 7: What is the dominant weathering at 19°10'21.78"N, 96° 7'59.77"W (25°C, 236cm)? A. B. C. D. Moderate chemical Strong chemical Moderate chemical with frost action Strong physical Question 8: What is the dominant weathering at 58°18'7.00"N, 134°25'11.00"W (5°C, 140cm)? A. B. C. D. Moderate chemical Strong chemical Moderate chemical with frost action Strong physical Collapse and uncheck the GLOBAL PERSPECTIVE folder. WEATHERING Double-click WEATHERING, and then double-click Mechanical Weathering. Identify the dominant type of mechanical weathering at the following locations. Use the photo links in Google Earth to help you identify the type. Double-click Feature A and then click Feature A photo. Question 9: Identify mechanical weathering at Feature A: A. B. C. D. Frost wedging Frost heaving Salt-crystal growth Exfoliation Double-click Feature B and then click Feature B photo. Question 10: Identify mechanical weathering at Feature B: A. Frost wedging B. Frost heaving5 C. Salt-crystal growth D. Exfoliation Double-click Feature C and then click Feature C photo. Question 11: Identify mechanical weathering at Feature C: A. B. C. D. Frost wedging Frost heaving Salt-crystal growth Exfoliation Collapse the Mechanical Weathering folder. Double-click Chemical Weathering. Double-click Feature D and then click Feature D photo. Question 12: Identify chemical weathering at Feature D: A. B. C. D. Hydrolysis Carbonation Oxidation Spheroidal Double-click Feature E and then click Feature E photo. Question 13: Identify chemical weathering at Feature E: A. B. C. D. Hydrolysis Carbonation Oxidation Spheroidal Double-click Feature F and then click Feature F photo. Question 14: Identify chemical weathering at Feature F: A. B. C. D. Hydrolysis Carbonation Oxidation Spheroidal 6 Collapse the Chemical Weathering folder. 7 MASS WASTING Expand the MASS WASTING folder. Double-click and select Feature G. Select the dominant type of mass wasting at Feature G. Question 15: Feature G: A.B. C. D. Slump Solifluction Landslide Rockfall Question 16: Why did you pick the answer you did in Question 15? A. Because the image shows material that has rotated and moved down the slope along a concave plane relative to the surface. B. Because the image shows where freeze-thaw processes result in lobes of soil moving gradually downslope. C. Because the image shows the result of movement of soil and bedrock down a steep slope in response to gravity, D. Because the image shows rocks that suddenly slid down a mountainside Double-click and select Feature H. Select the dominant type of mass wasting at Feature H. Question 17: Feature H: A. B. C. D. Slump Solifluction Landslide Rockfall Question 18: Why did you pick the answer you did in Question 17 A. Because the image shows material that has rotated and moved down the slope along a concave plane relative to the surface. B. Because the image shows where freeze-thaw processes result in lobes of soil moving gradually downslope. C. Because the image shows the result of movement of soil and bedrock down a steep slope in response to gravity, 8 D. Because the image shows rocks that suddenly slid down a mountainside Double-click and select Feature I and examine the area in September 1998. Use the historical imagery slider and advance the timeline to March 2007. Select the dominant type of mass wasting at Feature I. Question 19: Feature I: A. B. C. D. Slump Solifluction Landslide Rockfall Question 20: Why did you pick the answer you did in Question 19? A. Because the image shows material that has rotated and moved down the slope along a concave plane relative to the surface.B. Because the image shows where freeze-thaw processes result in lobes of soil moving gradually downslope. C. Because the image shows the result of movement of soil and bedrock down a steep slope in response to gravity, D. Because the image shows rocks that suddenly slid down a mountainside Double-click and select Slope 1. Right click the title Slope 1, and then select Show Elevation Profile. Place your cursor over the elevation profile chart and compute the slope of the lines. Recall that the equation for slope is RISE/RUN and that the units must be the same when dividing (that is, both in meters). Question 21: What is the RISE (Elevation gain) in meters? A. B. C. D. 738 meters 190 meters 46.7 meters 25.4 meters Question 22: What is the RUN of the line (Distance) in meters? A. 738 meters B. 190 meters 9 C. 46.7 meters D. 25.4 meters Question 23: Based on the answers in Questions 20 and 21, what is the average slope of the line? A. B. C. D. 738 % 190 % 46.7 % 25.4 % Double-click and select Feature J. Examine the area in July 1998. Use the historical imagery slider and advance the timeline to February 2003. Select the dominant type of mass wasting at Feature J. Question 24: Feature J: A. B. C. D. Slump Debris flow Mudflow Soil Creep Question 25: Why did you pick the answer you did in Question 24? A. Because the images show material that has rotated and moved down the slope along a concave plane relative to the surface.B. Because the images show the results of a rapidly flowing and extremely powerful mass of water, rocks, sediment, boulders, and trees. C. Because the images show the results of a well-saturated and highly fluid mass of finetextured sediment D. Because the images show the result of a gradual downhill movement of soil, trees, and rocks due to the force of gravity. Double-click and select Feature K. Select the dominant type of mass wasting at Feature K. Question 26: Feature K: A. B. C. D. Slump Debris flow Mudflow Soil Creep 10 Question 27: Why did you pick the answer you did in Question 26? A. Because the images show material that has rotated and moved down the slope along a concave plane relative to the surface. B. Because the images show the results of a rapidly flowing and extremely powerful mass of water, rocks, sediment, boulders, and trees. C. Because the images show the results of a well-saturated and highly fluid mass of finetextured sediment D. Because the images show the result of a gradual downhill movement of soil, trees, and rocks due to the force of gravity. Double-click and select Slope 2. Right click the title Slope 2, and then select Show Elevation Profile. Place your cursor over the elevation profile chart and compute the slope of the lines. Recall that the equation for slope is RISE / RUN and that the units must be the same when dividing (that is, both in meters). Question 28: What is the RISE (Elevation gain) in meters? A. B. C. D. 92.1 meters 35.6 meters 128 meters 148 meters Question 29: What is the RUN of the line (Distance) in meters? A. B. C. D. 92.1 meters 35.6 meters 128 meters 148 meters Question 30: Based on the answers in Questions 28 and 29, what is the average slope ofthe line? A. B. C. D. 92.1 meters ÷ 92.1 meters x 100% = 100% 35.6 meters ÷ 92.1 meters x 100% = 38.6% 128 meters ÷ 148 meters x 100% = 86.5% 35.6 meters ÷ 128 meters x 100% = 27.8% Question 31: Which mass wasting event do you expect to travel faster (Feature I or K)? Why? A. Feature I because it is one of the fastest types of mass wasting 11 B. 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