SaddieHill200200SputCloseddepressionat top ofhillSpurBM24Ridge100Ridge1 mileContour interval 20 ft.1. What direction is the river shown on the left side of the map flowing?[ Select ]Options :South North East2. Four black points are present on the map, which point is located on the steepest slope?[ Select ]WestOptions :Point A - pointB -point C - point- D3. If point D and point A are 1.5 miles apart, what is the gradient between the two points?[ Select ]Options :107ft - 133ft127ft -147ft%3DSaddieValley

Here the given map is a topographic map that describes the round features like hills, valleys, river courses, lakes etc. Also, it contains contour lines which are the lines connecting all points of equal elevation with content interval. The difference in any two consecutive contour lines is known as contour interval. Here the contour interval is 20 ft. 1) In the given topographic map, there is a river that flows on the western side of the map. The direction of the flow is entirely due south. So the direction of the river shown on the left side of the map is due south. 2) In the map there are four black points marked as A, B, C and D. point D is situated at the top of the hill with an elevation of 200ft. Here the contour lines are far apart and not closely spaced therefore the slope must be gentle here. Point C is near sea level and there is no close arrangement of contour line wherefore the slope here is gentle. At point B the contour lines are far apart so the slope must be gentle. In the ease of point A, there will be a closely spaced contour line therefore the slope is steep. Therefore the point A is located on the steepest slope on the map. 3) The elevation of point A = 40 ft The elevation of point D = 200 ft The change in elevation = 200 ft - 40 ft = 160 ft The horizontal distance between A and D = 1.5 miles. The gradient between the points = Elevation differenceHorizontal distance = 1601.5 = 106.67= 107 ft/miles Answer: 1) South 2) Point A 3) 1007 ft/miles