Not sure if this is right, but I think it is
(1. "O heavy lightness! serious vanity!"
(2. "Feather of lead, bright smoke, cold fire, sick health!"
The topic that could be used to write a narrative using supporting details from the excerpt is, Victor's experience studying a new science. A narrative is like telling a story of happenings that follow a time sequence. It is usually based on personal experiences and usually written by the narrator himself.
<span>the vastness of the environment
The description of the water on both sides without mention of land shows the vastness.
</span>
I’m pretty sure it would be 1. but i may be wrong.