The ultraviolet spectrum?
Chemical Mixtures Tested in labs and added substances for smell
sudden volume changes are known as subito dynamics
One of them is pointy, one is round. They are both blue. They both have shapes. But one has different shapes like a diamond and the other is more circular. Hope this helps!
I think that it is mistake. Because if something is daunting, it is a challenge. If you regret something, it is a mistake.