What is the definition of a cut or bank in terms of slope?

The definition of a cut or bank in terms of slope refers to a situation where land has been altered to create a steep incline, typically as a result of excavation activities. When the slope is described as being greater than one hundred percent, it indicates a very steep incline, often approaching vertical. This situation is commonly observed in environments where soil and rock have been removed to create paths for roads or other structures, resulting in a face that is steep enough to be classified as a bank or cut.

In contrast, other options fail to capture the specific nature of a cut or bank. A naturally occurring slope less than 30 degrees lacks the steepness expected in this context, while an artificially formed slope extending vertically is too vague and does not convey the precise definition required. Additionally, a flat area without any slope characteristics does not resemble a cut or bank at all, as it describes an entirely level surface. Thus, the emphasis on the steepness and verticality of the slope in the correct answer is essential to understanding the concept of a cut or bank in relation to slope.