I think it would be classified as realistic, or scientific nonfiction.
Answer:
Im very sure its a Simile
Explanation:
because a simile uses the terms like or as. "His gleamed like a handful of dimes"? it has like in the phrase. :) (sorry im real late to answer tho)
The echoing sound of his voice shows his excitement that his brother is communicating
Yes, one should make sure that the subjects and verbs agree