All of these answers are correct. you should choose all of these answers.
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>
By the time that the Declaration of Independence was adopted in July 1776, the Thirteen Colonies and Great Britain had been at war for more than a year. The colonies were not directly represented in Parliament, and colonists argued that Parliament had no right to levy taxes upon them.
George Washington was the president
