AppMeasurement.min.js is the Adobe Analytics library (loaded by the AA extension).
Others that may show in the head will most likely be snippets loaded by other extensions or (page top) Library Load rules.
If you have custom code actions on your rules, the code that you enter for those custom code snippets will be loaded when needed. If needed on demand (e.g. by a rule triggered on a click event), those snippets will show up on the bottom of the DOM.
One thing to note - If you are using the async embed of Launch in the HEAD, the other scripts loaded in the head will also be async.
If you want to know what each one is, use the Chrome Network tab, and look at Preview or Response pane to see what code is being provided by each.