Answer: It tells readers there is something important happening on that asteroid.
I think you need to look up fact and know more about what college students do. It’s more of a your own opinion based question
Answer:
Many writers use imagery to convey a picture without saying directly what the image is. ... Imagery is an important element in writing. Imagery can stimulate the imagination and create vivid pictures in the mind.(If you look many best-sellers play heavily on imagery)
While our parents were working, Mrs. Kent watched <u>us.</u>
they or we, wouldn't make sense when you read the sentence.
Hope this helps.
