The slope of a stream surface measured between two points along its course is the ________.
A) base level
B) floodplain
C) gradient
D) thalweg

Question

Quizplus · Accepted Answer

The slope of a stream surface is commonly referred to as its gradient, which is the change in elevation over a given distance. Base level refers to the lowest point to which a stream can erode its channel, floodplain is the flat area surrounding a stream that is subject to periodic flooding, and thalweg is the line of lowest elevation within a river channel.

The Slope of a Stream Surface Measured Between Two Points