Grammar question?

questions

What is the "it?"

I'm pretty sure that colons have to be preceded by sentences. "One of the most pressing questions that accompanies every extreme weather event nowadays" is not a sentence. You might as well replace the colon with "is" to make it a sentence. But if you don't want to do that, you could change the clause in front of the colon to something like, "(This is) one of the most pressing questions that accompanies every extreme weather nowadays," and leave the rest the same.

every extreme weather event

Body I'd suppose sometimes it is and sometimes it isn't. Eng, Con, Man, help

That idea: incorrect.

Peren, Con is right and one would wonder where you got that idea

Forgive

That's what I was taught.

http://www.getitwriteonline.com/archive/111602colon.htm

I looked it up. This site says independent clause instead of sentence, but same difference, right? Maybe the site's wrong too. Idk. I've just always thought that, in formal writing at least, colons have to be preceded by complete sentences.

It is a question only asked by a person buying votes.
Candlelight8