groups of stars
An appositive phrase follows a noun and defines it using a noun. The word constellations is a noun. It is defined as groups of stars. Usually, an appositive phrase is set off by commas. Another example of an appositive phrase is: My dog, a yellow lab, likes to play ball. The appositive phrase is "a yellow lab". The phrase describes the noun - dog.
Because that is the definition of those words.
those words were used to describe a keratin placing of higharcy, they mean what they mean.
Just how loose means loose and tight means tight...it is just what it means.
This question is out of context if you want a better answer...explain to me what you need help with.
This metaphor meant that they climbed and jumped rock to rock sure-footed
Paper ink color interesting local
How far away they are from each other