Tanvi and Eduardo are standing at the bottom of a hill. Tanvi begins to walk up the hill while Eduardo remains at the bottom. As Tanvi climbs higher and higher, Eduardo notices that he can see less and less of Tanvi's body. Eventually, he can only see Tanvi from the waist up. What will happen if Tanvi continues to climb the hill?

Provide a very brief response.
As Tanvi continues to climb the hill, the line of sight from Eduardo's position to Tanvi will continue to be obstructed by the curvature of the hill. Eventually, Eduardo will not be able to see Tanvi at all. This occurs because the hill gradually blocks more of Tanvi's body from Eduardo's view from the bottom as the vertical distance between them increases, and the angle of the line of sight from Eduardo to Tanvi's position becomes more acute relative to the slope of the hill.