The difference between shields and stable platforms.

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Chapter 1.5, Problem 4CC

To determine

The difference between shields and stable platforms.

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List 3 energy conservation tecniques

1. Use the elevations in Figure 7.12 as a guide for drawing contour lines. The 100-foot contour line is provided for reference. Using a 20-foot contour interval, draw a contour line for each 20-foot change in elevation below and above 100 feet (e.g., 60 feet, 80 feet, 120 feet). You will have to estimate the elevations between the points. Label each contour line with its elevation. 2. Does the land shown on the topographic map you constructed generally slope downward toward the north or south? 3. Show the direction each stream is flowing by drawing arrows on the map.

Drawing a Topographic Profile Follow the steps illustrated in Figure 7.13 to draw a topographic profile. Use the profile graph in Figure 7.14 to construct a west-east profile along the line A-A' on the contour map you completed in Figure 7.12. Step 1. Our sample profile will be along line A-A. When constructing profiles on maps provided by your instructor, do not draw on the map. Step 2. Lay a piece of paper along the line of the profile you want to construct. In this example this is line A-A'. Mark each place where a contour line intersects the edge of the paper and note the elevation of the contour line. Step 3. On a separate piece of paper, draw a horizontal line slightly longer than your profile line, A-A'. Select a vertical scale for your profile that begins slightly. below the lowest elevation along the profile and extends slightly beyond the highest elevation. Mark this scale on either side of the horizontal line. Lay the marked paper edge (from Step 2) along the horizontal…