Can anybody tell me about below mention type of essays?

Do you agree or disagree ?
To what extent do you agree or disagree?
Positive and negative development?

Are these similar kind of essays?
Is there any difference in structure?

Not exactly similar, there are little differences in the introduction I think. The structure should be the same with 4 paragraphs:

paragraph 1: Introduction.
paragraph 2:Some people may have this idea. ...
paragraph 3:while I still support another idea....
paragraph 4: conclusion.

Don't you think it is similar like

para 1: Introduction with opinion

para 2: support opinion with overall idea 1 and give reasons and example

para 3: again support opinion with overall idea 2 and give reasons and example

para 4: conclusion

if somebody knows the exact difference between these. please share it.
Thanks.