I am having a problem in using the relative pronoun which inappropriately. Hence I would like to confirm that the below sentence is a right usage of it.
Animals & birds are butchered for food by humans, which a few folks support it by stating that the ecological balance rests entirely upon one depending on the other for food
Can this sentence be constructed in any other form to make it clear.
Secondly, can I use a comma before words such as who , which, where, while in a sentence for sentence clarity?
For example, in the above example I used as "food by humans, which few folks". Is this comma acceptable?