Your xp will still be there even after remove, But yea make sure u "REMOVE" not "RESET". I have removed all my course too.
Just follow @Ekansh🌸
Go Learn section[1st from right]
Then click change, u will see list of language then click 3 dots icon and then remove them.
if you mean, how is it interpreted to the user the browser understands the tag (codes to make a static site) but for a dynamic site you need xtra web services to handle backend or server sides codes ( codes that are not visible to the user browser but already interpreted) like PHP etc to do that
Static pages are pages that the content are not meant to change, eg lets say your contact details page on your contact page and if you are doing a dynamic website like a shopping site where you sell goods and services, as you have new products that you want to add to your website, those contents are dynamic because you can change them again with time.