Answer:
Skill required you or showing that you are far more superior in this kind of work
pros: you show your skill to others that you can do this and that
cons: less job/work about skill related since most/common need is knowledge
Knowledge you use brain in this in order to find answer to the questions
pros: you can help people with the problem they are facing or they cant solved alone
cons: you be likely most weak on outside since you only rely on knowledge
