Task: Class Definition Understanding (ontology: Earth_Environment/EnvironmentOntology)

Which of the following definitions best describes 'riverine flood'?

A. A the concept is a flood which is formed as a result of large amounts of water from marine water bodies or large lakes being transported to usually dry land by displacement processes such as high winds or seismic activity.
B. A the concept is a flood which is formed as a result of a river's flow rate exceeding the capacity of its channel.
C. Karst dominated by closed depressions, chiefly dolines, perforating a simple surface.
D. A the concept is a flood formed by the rapid flooding of geomorphic low-lying areas. It may be caused by heavy rain associated with a severe thunderstorm, hurricane, tropical storm, or meltwater from ice or snow flowing over ice sheets or snowfields. Flash floods may also occur after the collapse of a natural ice or debris dam, or a human structure such as a man-made dam. Flash floods are distinguished from a regular flood by a timescale of less than six hours.

Answer: A the concept is a flood which is formed as a result of a river's flow rate exceeding the capacity of its channel.