"My job is important because it makes the best use of nature possible."
I'm not sure how the word 'possible' is used in this sentence. I've looked up the dictionaries and thought of possible usages. First, I guess it could be a way used after adjectives to emphasize that something is the best, worst, and so on as the sentence "It was the best possible surprise anyone could have given me." Otherwise, it could be used to modify the word 'nature' as post-modification. It's quite confusing. I would appreciate if someone answers this question. Thank you.