Task: Instance Description Understanding (ontology: Earth_Environment/SWEET)

Which of the following definitions best describes the instance 'depolarization ratio'?

A. The ratio of a region's total precipitation to its external precipitation originating as evaporation from the oceans as opposed to evapotranspiration from the land.
B. The ratio of the volume of water which the porous medium after being saturated, will yield by gravity to the volume of the porous medium.
C. The ratio of the Volume of water which the porous medium, after being saturated, will retain against the pull of gravity to the volume of the porous medium.
D. In Raman spectroscopy, the instance is the intensity ratio between the perpendicular component and the parallel component of the Raman scattered light.

Answer: In Raman spectroscopy, the instance is the intensity ratio between the perpendicular component and the parallel component of the Raman scattered light.