Not exactly sure what is being asked but they might be communicating defiance or even a relaxed demeanor.
If hes just being rude, honestly just stay in your room or something until he leaves, or maybe even tell your brother about it so maybe he'll say something to the friend. if he keeps bothering you even after all that, just tell him to leave you the FU€K alone. best of luck!!
Answer:
1.a chart showing how deep the Grand Canyon is
2.a map of Arizona showing the Grand Canyon
hope this helps
Answer:
A. He does not include any information about Soviet technology for comparison to support his point.
Explanation:
While he does talk about how America will surpass its previous accomplishments, he never gives comparisons with Soviet Technology