Patent fingerprints<span> can be made by blood, grease, ink, or dirt.</span>
Answer:
you can change them in settings I think-
Once I was trying to learn french and I used a app called Duoligo, it helps you learn different languages for free and if you already know a bit of french, you can test yourself out and they can decide if you are a beginner, intermediate, or an expert in the language.
I hope this helped :)
