Streams erode downward until they reach ________.

Question

Quizplus · Accepted Answer

Base level is the lowest point to which a stream can erode its channel. Once a stream reaches its base level, it can no longer erode downward and may begin to erode laterally, creating a floodplain. Choices B and C are incorrect because a stream's profile and an oxbow are features created by stream erosion, not the point at which erosion stops. Choice D is incorrect because a floodplain is a feature created by lateral erosion, not the point at which erosion stops.

Streams Erode Downward Until They Reach ________