Is the same information on at least 5 other websites? Is there a padlock at the top of your screen to show the site is secure? Does the information make sense? Does the information look sensible? Does the website end in '.gov'? - If so then it probably is trustworthy because it is from the government.
Color is the least reliable property for identifying a mineral because many minerals can have the same color but different compositions.
The least reliable source a fact checker could consult is an online source that is open to the public for edits. While fact checking, the best sources are encyclopedias and academic journals. These sources have been written by experts in their field and cannot be edited or changed by the public.
A book from the library
If you have a source don't be lazy and check at least two to three different sources and compare the given info. If the sources match, then the one you are asking about is reliable. If not it is not reliable. In cases like that just pick up a book. It doesn't hurt.
.com
Social media platforms can be the least reliable in terms of accuracy of information, as they can be easily manipulated and contain a mix of true and false content. It is important to verify information found on social media through credible sources before considering it as accurate.
Which internet domain is the least reliable
are those that provide the least information about the author and their original source of information.
a book of facts
a book of facts
Nope. Or at least not yet. But according to the Wikipedia (which isn't a reliable source) there will be. So.. maybe soon?