<span>"By
having the narrator describe the darkness as a force that has a
physical impact on him, Poe helps create a claustrophobic mood and a
sense of the narrator's great fear and discomfort." Should be the answer :D</span>
<span>He believed that the war was fought to add more slave states to the United States.
He believed that by acquiring the Mexican territory, the Democratic party would obtain additional slave state that strengthen their position in the government.
Since Henry David Thoreau consider himself as an abolitionist, he did not support the purpose of this Mexican-American war.
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<span>It's that they symbolize selfless giving </span>
The adjective clause is similar to the simple adjective in that that it describes, or refers to, or modifies the noun which precedes it. Having that in mind, the adjective clause in this sentence is 'you saw at the coffee shop', because it modifies the noun 'the man'.