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Question: how would i answer these questions...

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How would i answer these questions?

8. In Fig. A11.2.3, what is the gradient and sinuosity of Passage Creek from G to H? (Refer to Figs. 11.3 and 11.4 for help measuring gradient and sinuosity.) Show your calculations. You will graph this data later in the activity Gradient: sinuosity 2000 1000 900 800 700 We will use semi-logarithmic graph paper (Fig. A11.2.4) to investigate whether there might be a relationship between gradient and sinuosity I. Plot points for the following streams, and draw a 400 300 best-fit line through the points: . Stream segment A-B (Garvin Canyon stream) from part activity Creek) from part C2. part C3 B4 of this activity Meanderin Stream segment C-D from part B5 of this 100 E a Stream segment E-F (tributary of Passage . Stream segment G-H (Passage Creek) from 70 60 . 2. Based on the summary graph that you just completed, do you think there is a relationship between a streams gradient and whether its 30 channel is straight, sinuous, or meandering? If you do, what do you think that relationship is? 20 E REFLECT & DISCUSS Compare the landscapes that you studied in this activity. What do you think are some of the factors that might determine the kind of drainage pattern that develops on a landscape and whether a stream is eroding its channel or depositing sediment? 1.0 1.3 1.5 2.0 4 Sinuosity Figure A11.2.4 312the parts 3 and 5 above, what do you think happens to the grudient of streams as they increase in order? . REFLECT & DISCUSS What do you think happens to the discharge of streams as they increase in order? Examine the enlarged part of the Strasburg, Virginia, quadrangle map in Fig. A11.2.3, which is centered near latitude REFLECT & DISCUSS By some accounts, the Mississippi River is a 10th-order stream. Based on yölui l As the Stnrde incr,he odint dc crcose 38.92°N, longitude 78.34°W Ul Elzabeth Furnace GEORGE WASHINGTON NATIONAL FOREST Shawt Gap High Peak North 5000 ft 1 km 0 Contour interval 10 Feet Figure A11.2.3 1. What drainage pattern is developed in this area, taking note that this map area is between two prominent, nearly parallel ridges? Refer to Fig. 11.8 for help. Explain your reasoning. 2. In Fig. A11.2.3, what is the gradient and sinuosity of the small stream, from E to Fr (Refer to Figs. 11.3 and 11.4 for help measuring gradient and sinuosity.) Show your calculations. You will graph this data later in the activity Gradient: ft.// mi. Sinuosity: 311Difference in elevation between two points Rise Horizontal distance between two points Run Midli stre cha Gradient from A to B 60 ft 5m40 f 100 point A 80 Figure 11.4 gradient is th A and B divic midline betw linear, sinuo is the chann midline of a between the Topographic contour lines 1.5 mi 40 20+ sinuosity a linear, sin and B alo enough a fairly rep osity is the by the stra (Fig. 11.4) 0 0 2 Distance in miles (mi) 6 40 f 13 ft/mi 3.0 mi Gradient from B to C than 1.5, sinuous s Figure 11.3 The gradient of a surface. The gradient of a surface is a measure of the steepness of its slope, measured along the fall line-the steepest part of the slope. Several methods for expressing stream gradient are used, all of which Potent divide the difference in elevation measured between two pointsContoi A spheri will have move it t down so on the surface by the horizontal distance between those two points or feet/mile. Gradients can also be dimensionless if we use the same unit to measure change in elevation as we use to measure change in distance, such as m/m. In that case, the units cancel each other, and the result is called a dency to an equip point has has the sa A hall at inless numher Sometimes these types of gradientswo points Rise pointsRun = Midline of stream channel Sinuosity point B 0 ft 5 mi 40 ft/mi point A Figure 11.4 Channel gradient and sinuosity. The channel gradient is the difference in elevation between two points A and B divided by the channel length measured along the midline between the two points. Streams are classified as linear, sinuous, or meandering based on their sinuosity, which is the channel length between two points A and B along the midline of a channel (c), divided by the horizontal distance between the two points (m). hic sinuosity as a way of describing whether to classify it as a linear, sinuous, or meandering stream. Given two points A and B along the midline of a stream channel, spaced far nough anart sn that the stream segment between them

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