The main theme of this essay is to expose the disadvantages of building housing developments on ridgetops, thereby accomplishing the purpose of urging readers to dissuade such developments. From the nature of its one sided view of the disadvantages of ridgetop development, it is definitely a persuasive essay.
"poetic description" is the only real option from the list that is not common in expository writing, although careful descriptions can indeed be used as long as the point remains clear and forceful.
Answer:
the narrator uses a strong tone, which helps to create the mood. The narrator's tone seems to be manic, or overly excited.
Explanation: