The answer is D. <span> invention of the first steel tools
Actually, this very topic is still a hot debate among scientists because the shift happens on different reasons in each region of the world.
But one thing they have in common is that Steel tools give the member of early societies the capabilities to rake uplands and cutting up crops that really useful in farming and herding.</span>
In the poem, Dunbar attacks through these identifications to the legal institution, represented by a judge, who is described wearing a black mask, also refers to the medical institution, as it describes a doctor wearing a white mask; and finally attacks the institution of the Church, because Dunbar describes a minister, with his eldest son. All this is clearly the way to expose how every part of American and white society is racist, and engage both the professionals, the high church members, as well as the representatives of the judiciary power, all involved in the horrible act of lynching a old african-american man.
<span>Managers and administrators are considered blue collar workers
False
People who work in jobs that require many years of education and training, and in which the work tends to be more mental than physical, are referred to as white-collar workers.
Blue-collar workers perform jobs that require manual labor.</span>
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The problems in Hungary began in October 1956, when thousands of protesters took to the streets demanding a more democratic political system and freedom from Soviet oppression. ... The Soviets did so, but Nagy then tried to push the Hungarian
Explanation: