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

Which of the following definitions best describes 'divergence'?

A. The removal of atmospheric gases or particles through their incorporation into hydrometeors, which are then lost by precipitation.
B. A wave that is stationary with respect to the medium in which it is embedded, for example, two equal gravity waves moving in opposite directions.
C. The expansion or spreading out of a vector field; also, a precise measure thereof.
D. A cumulus cloud that is no longer dynamically connected with the atmospheric boundary layer via updrafts or downdrafts.

Answer: The expansion or spreading out of a vector field; also, a precise measure thereof.