The benefits were jobs, since the factories moved to cities and needed more workers the urbanization began thus creating a high demand for labor
The black activists who encourage the African Americans to
fight for their rights by building up is Martin Luther King as he was an
activist and a leader in which a movement called the civil right movements
started as a way of providing and fighting for equal rights.
He seems to be grumpy and mean. If those are answer choices though, I'd have to say it's 'eager to pick a fight', 'intimidating', and 'commanding of respect'.
Character traits are words that describes someone's personality and qualities. For example, if someone likes to kicks animals for no reason and hurt those weaker than them, they're described as cruel and mean. If someone gives money to the poor and helps others in need, they're described as kind-hearted and warm.
Hope this helps! Good luck!