Diversity for Biology?
If so it is important bc if we don't learn diversity we wouldn't know the diversity of plants animals of anything nor how to calculate it and if we don't know the diversity we don't know the key species to the ecosystem or what amount of a certain thing is causing a problem.
Hope this helps have a nice day
<span />
"This is one of Saki's lighter and more purely humorous stories. It concerns a fussy and socially awkward man named Theodoric Voler and the difficulties he has when he is on a train and finds that there is a mouse climbing up the leg of his pants." website-https://www.enotes.com/homework-help/what-summary-mouse-by-h-h-munro-230607
Try describing simple like the sky.
#1 The clouds float across the sky like fluffy bits of cotton candy.
#2 The sun smiles down on the earth, yellow and bright.
#3 Whispering wisps of wind whistle by.
This uses simile, personification, and alliteration in that order. For your own (if you don't want to plagiarize my answer entirely) try replacing the verbs and adjectives I used for each sentence, and maybe find your own comparison for the clouds. I wouldn't suggest using my response word for word, but it can be a good example. Plus, mine isn't very dramatic.
Maybe describe a stormy sky?
The answer is A. B is redundant. C is passive. D is good, but could be shorter, and slightly less redundant.