Explanation:
The black holes are formed when a sun dies.
The sun blasts and it forms a black hole which is in visible to the naked eye.
When something is pulled inside a black hole, the matter is squeezed.
The correct answer cannot be any of the other choices besides, sequence.
If the answer was "Adding an Idea" it would have to be furthermore, yet, in addition, and other choices.
The only category "Afterword" belongs in is a sequence.
This group of stanzas present an alternate rhyme pattern, which follow the ABAB CDAD format; there are four sounds present and and each is used in the particular order defined by the letters in the format. This makes for a poem's purpose, and the stanzas can also be used for a march song since they can be followed by instruments in an even metre (which is a pattern used in march songs for accented first beats).
In experimental physics, reverberation produces echo and thus makes undesirable sound. An echo is a sound reflected off of a surface. In a big hall, it interferes with the actual sound. It gives confusion when people are having a conversation.