one colour wallpaper

Android Authority: One UI 8's dynamic color-shifting wallpapers will make your screen mesmerizing Dynamic wallpapers were spotted in a leaked build of One UI 8. These wallpapers change colors throughout the day. Powering on or unlocking your phone will trigger a gradient animation. Although One UI ... Which one is grammatically correct or better? I have two assignments, One of them is done. I have two assignments, One of which is done. I watched a video tutorial that the teacher said the ... pronouns - "One of them" vs. "One of which" - English Language Learners ... One-to-one is used when you talk about transfer or communications. You may use one-to-one when you can identify a source and a destination. For eg., a one-to-one email is one sent from a single person to another, i.e., no ccs or bccs. In maths, a one-to-one mapping maps one element of a set to a unique element in a target set. One-on-one is the correct adjective in your example. See Free ...

It is possible that the singular/plural choice is not a purely syntactical matter, but partially depends on whether the speaker's focus is on one or on more. If it is expected that there will be more than one (and one is included just to cover all the possibilities), it is natural to use the plural. Which is correct: "one or more is" or "one or more are"?