Which best describes the physical features of the Ridge and Valley region?

It has scenic canyons and caves.

It has the state's most important waterways.

It includes the state's highest peaks.

It includes a series of elevations and depressions.

It includes a series of elevations and depressions.

Explanation:

Ridges are basically small elevations and if you look at them from a flat surface, they might even look like small mountains. In reality they are only 700ft tall.

Valleys on the other hand are plains with not ridges or small mountains.

Therefore a ridge and valley region would consist of a series of elevations due to ridges and depressions due to the plain valleys.