Question

The upstream of a river can be determined by _____.

A the direction of the mouths of the V shapes on contour lines

B which way is south from the map's compass

C examining the highest elevation on the map

D the direction of the points of the V shapes on contour lines

Answer 1

C - the source of a river is usually on higher ground

Answer 2

A is correct

Step-by-step explanation:

option A is correct

The upstream of a river can be determined by The direction of the mouth of the V shapes on the contour lines. All the river flow downhill from a region of higher elevation to a region of lower elevation. So, the thumb rule is that V shaped contour lines indicate upstream. ( the direction opposite to the flow of river). V shaped contour lines are show streams and drainage.