What idea about human nature or life is the author trying to express through the characters or events? what does he have to say about happiness through sergei’s situation, actions and the outcome of events? answer in the text box provided.

Believe you are talking about the Sergei in the “What, of This Goldfish, Would You Wish?” If that's so, then the theme about happiness presented here is that people hold onto different things for their happiness. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help. 

We should feel gravity around us. if it ever ends what will life be like. the reader will definitely have alot of questions towards gravity being ended

The answer is either b or c because it is in third person point of view but i'm not sure which one it is