Answer:
They are strong and diverse workers.
Explanation:
In the poem "I Hear America Singing," the author talks about Americans, and he presents an image of the kind of people that inhabit the country. He presents these people as hard-working. More importantly, he presents them as diverse. The author focuses on the fact that, while the personal characteristics of these people are very diverse, they are all an important part of the life of the country.
