For number four, you are correct. It was disease carrying mosquitos. That was why the colonists didn't have too many run-ins with the indians since the native american avoided the area for that very reason.
Number five is self-government which is where it is run by the people. So your answer would be Colonial Assembly.
18 years old I think maybe
You have to select a different filter but I do not think this app has a filter for that, I can help with middle school work if you would like
A, if the underlined word is handed.