Correct the sentence fragment by rewriting the sentence in the paragraph box below. we now know how hurricanes originate. how they affect ecology.

A correct version of this fragment would be:

We now know how hurricanes originate, and how they affect ecology.

In this case, there are two independent clauses. By introducing the conjunction and these clauses are joined. Since both clauses are independent and joined by a conjunction, the comma is required before and.

We now know how hurricanes originate, and how they affect ecology.

you can use this site to summarize your ideas, exotic animals do not make good pets.