The reason why i am asking is.I found 2 ways to create levels.I can make tons of scenes for each levels or i can make 1 scene and attach each level objects to gameobjects then i use setactive method to a user.Which one is preferable? by the way i am creating for mobile project so even 10mb does matter for me
If your levels mostly use the same assets, just have them all in 1 scene.
If your levels all use completely different assets, separate them into scenes, so the assets get unloaded/loaded as needed.