Doc: interactive vs. batch

Hi,

I found this part of `--help` a bit confusing:

```
batch Run Emacs in batch mode, loading project source and test files
automatically, with remaining args (after "--") passed to Emacs.
interactive Run Emacs interactively, loading project source and test files
automatically, with remaining args (after "--") passed to Emacs.
```

Does "interactive" mean that an Emacs window is opened? Is it killed at the end? In batch mode, is Emacs killed automatically at the end or does it stay open?