Why should a journalist avoid doing things such as altering photographs for dramatic effect?

Because things like that have to show the truth. it is a rule of journalism.

It'd look like they're okay with altering things and fixing up things the way they want it to be - rather than showing everyone the truth and letting them have their own opinion. It shows dishonestly, and it would make people doubt the credibility of their stories as a whole. It makes it seem like they're hiding something.
They do better writing their stories with more of a dramatic effect using words like," And that's not all" or "the next thing that happened shocked millions" etc.
I hope all is well, and you pass! Good luck, rockstar! (:

There is nothing inherently wrong with being gay. speaking generally, opposition to gays are usually judged on people's moral basis whether it be religion, experience or other factors. to conclude, there is no objective answer to this question only subjective ones that rely on people's idea of what is right and wrong.

Whats your question?