Answer:
The author's use of simile:
B. It helps the reader visualize the increased number of exoplanets discovered.
Explanation:
A simile is a figure of speech used with the intention of making a comparison - stating a similarity - between two different things. A simile needs help of words such as "as" or "like".
In the text, the discovery of planets and exoplanets was compared to billiard balls in a pool game. First, discovering planets was similar to a regular game, in which it is easy to see and count the balls. But, <u>as more and more exoplanets were discovered, scientists could no longer run tally.</u> That is why it was like a pool player making a big, smashing break: planets, like the billiard balls, were everywhere. The text moves on the describe it as an <u>"inordinate number"</u>. Therefore, <u>we can say safely say the simile is being used to help the reader visualize the increased number of exoplanets discovered.</u>
broad topic isn't exactly what you want in a presentation, you usually want to have a very narrowed topic, focusing on something specific.
Detains and examples are very important, so check that. You always need multiple sources.
A cited list is also very important, because it's technically illegal to not have one if you used any info from somewhere else besides your own brain.
D isn't important at all
E could be important for the working progress phase, but for the presentation itself, it's not really needed.
I’m pretty sure it’s page 30, i may be wrong