Literature 1. Using the context surrounding the word trough in line 9 of "Concrete Mixers," explain what a trough looks like and what it does on a concrete mixer.
2. "Concrete Mixers."
(a) What do you think this term means?
(b) Explain your reasoning.​

the answer is c. many americans held nativist or racist views

to act quickly in times of danger to the united states

because you have to act quickly if you want to live/survive.

d.

the northwest territory became the most densely populated area in the u.s.