What is the ultimate base level?
A)Continental Divide
B)A basalt flow beneath softer sedimentary rocks
C)Sea level
D)The bottom of a waterfall

Question

Quizplus · Accepted Answer

The ultimate base level is the lowest point to which a river can erode its channel. It is typically sea level or the level of a large body of water into which a river flows. Option C, sea level, is the only choice that matches this definition.

What Is the Ultimate Base Level