read the sentence.\nconservationists are considering urban runoff and they are tracking population growth…

read the sentence.\nconservationists are considering urban runoff and they are tracking population growth but the magnitude of the situation has not been determined.\naccording to the elements of style, what is the correct way to punctuate this sentence?\nconservationists are considering urban runoff and they are tracking population growth, but the magnitude of the situation has not been determined.\nconservationists are considering urban runoff, and they are tracking population growth but, the magnitude of the situation has not been determined.\nconservationists are considering urban runoff, and they are tracking population growth, but the magnitude of the situation has not been determined.\nno change
Answer
Brief Explanations:
When joining two independent clauses with a coordinating conjunction like "and" or "but", a comma is placed before the conjunction. The first independent clause is "Conservationists are considering urban runoff", the second is "they are tracking population growth", and the third is "the magnitude of the situation has not been determined". The correct punctuation uses commas before "and" and "but" to separate the independent - clauses.
Answer:
Conservationists are considering urban runoff, and they are tracking population growth, but the magnitude of the situation has not been determined.