Answer:
The rock must be eroded into sediment
Explanation:
In order to form sedimentary rock, the accumulated sediment must become compacted and cemented together.
The answer is all of the above
All galaxies have a dense core of stars. Spiral galaxies, however, have arms that are often visible. There are two kinds of spiral galaxies: barred, where there appears to be a line running from arm to arm through the core, and <span>ordinary, where there is no bar. @Badbunnyhunny</span>
The correct answer would be:
<em>Cycles.</em>