Read the passage from "Mutability.” We are as clouds that veil the midnight moon;
How restlessly they speed, and gleam, and quiver,
Streaking the darkness radiantly!—yet soon
Night closes round, and they are lost for ever:

By contrasting "darkness” with "radiantly,” Shelley

emphasizes that although life is fleeting, it is exciting.
compares the spark of creativity to the enduring night sky.
introduces the idea that people are destined to live life in darkness.
explains that people are permanent, bright fixtures like the heavens.

if you don't mind posting the paragraph so i could read it that would a lot. (;

its c

explanation:

21 balloons is the story of professor william sherman's travels.

in 1883, he set off from san francisco for a balloon ride over the pacific and was found a month later floating with 21 balloons in the atlantic ocean. this seemed an astounding feat and everyone wanted to know what had happened.    

professor sherman was loyal, however, and said he would tell his tale first to the western american explorers club in san francisco, of which he was a member. this built up suspense for several chapters before he began to tell of the wonders of his adventures and the amazing island of krakatoa, an island which had just been blown up by a volcano.  

the residents of krakatoa are all millionaires who live under a "gourmet government" of their own devising. we get to see all the incredible adventures that creative people with unlimited resources would create according to the author.