The upstream of a river can be determined by the direction of the points of the V shapes on contour lines. In topographic maps, contour lines that form a V shape typically point upstream, indicating the direction water flows.
The upstream of a river can be determined by _____.
examining the highest elevation on the map
the direction of the points of the V shapes on contour lines
which way is south from the map's compass
the direction of the mouths of the V shapes on contour lines
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