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r questions 46 through 50 please refer to the topographic map from a mountainous

ID: 294738 • Letter: R

Question

r questions 46 through 50 please refer to the topographic map from a mountainous area near Thenn Figure 6 Questions 46 through 50: True/False For each of the following statements indicate whether i is true or false. Note: True is T(a) on your ParScore form and False is Fib) Fo 46. The creek in the depicted canyon generally flows to the west in this area. 47. The castern part of this canyon was cut by strcam erosion 48. An alluvial fan is forming below the north south trending canyon in the lower middle of the map 49. The upper canyon trending north-south mentioned in question 48 was cut by stream erosion. 50. The upper portions of the east-west canyon depicted in this map was cut by glaciation. End of Part A of the Midterm Examination

Explanation / Answer

46) it is true. It is easy to find the direction of river. ( contour values are decreasing towards west side hence the slope is toward west.

47) it is true because when it is stream erosion it erodes the bed rock, and it is seen from the contour values that in eastern side the contour values or elevation is 8000m and it is decreasing as the stream flows towards west. The elevation is gently decreasing indicate that river is caused by stream erosion.

48) it is false In the middle of the map, the elevation is changing little bit and there is no stream erosion action which means it can't form the alluvial fan there.

49) it is true, the upper canyon in middle of the map is cut by stream erosion and it is seen from its shape which is V. hence it is definitely the result of stream erosion.

50) it is true. Large part of upper portion is forest and cut which is not the result of stream erosion and hence it can be possible to say that it is result of glaciation. When glaciation occurs the large part get eroded and forms the depression that we can see at the northwest part of the map.