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

Which of the following definitions best describes 'mass wasting flow'?

A. A the concept is a form of mass wasting during which the moving materials behave similarly to a flowing fluid. Water, air and ice are often involved in enabling fluidlike motion of the material.
B. A mass wasting process during which refuse from human activities, usually accumulated at a dumping site, falls down a slope under the force of gravity.
C. A process during which a part of an ice mass breaks away from the main mass.
D. A mass wasting flow during which snow rapidly flows down a sloping surface.

Answer: A the concept is a form of mass wasting during which the moving materials behave similarly to a flowing fluid. Water, air and ice are often involved in enabling fluidlike motion of the material.