Final answer:
To determine if a bend has valleys or hills, use topographic maps and look for V shapes indicating valleys and the direction of the V to determine the dip of the feature.
Step-by-step explanation:
To determine if a bend has valleys or hills, you can use topographic maps. On a topographic map, a V shape indicates a valley, with the point of the V pointing upstream toward the source. Additionally, the angle of the V formed by the intersection of a linear feature and the topography can help you determine the dip of the feature. By analyzing these features on a map, you can identify valleys and hills in a bend.