Risk assessments.
These days my job doesn’t have much connection to my degree subject at all, so there is very little that it prepared me for. But my previous role - ranger - was very much tied into the subject that I took: Environmental Science.
Risk assessments are not unique to this area, of course and some of this is due to it being 20 odd years ago that I that I got my degree, but even so, looking back, I am surprised that risk assessments didn’t feature anywhere. Not during that degree nor during the - much more practically based - arboriculture course that I took shortly before.