<u>Answer:</u>
Early mound-building tribes flourish "In the Mississippi and Ohio River Valleys".
<u>Explanation:</u>
"Mound Builders" is a collective name for number of North American inhabitants for a period of 5000 years and comprised from Archaic's period pre-Columbian cultures, Woodland's period Adena, Calusa and Hopewell cultures, Mississippian period cultural people from 3599 BCE to 16th century CE resided in Ohio & Mississippi River Valley.
The Mound Builders were categorized with different classes of society termed as the Nobles, the Stars, the Honored Men and the Honored Women and the lower class.The Mound Builders use to pay homage to the sun and centered their religion served by shaven priests, a shaman, and leaders of the village around a temple.
Explanation:
<u>For those in the industrial sector, organized labor unions fought for better wages, reasonable hours and safer working conditions. The labor movement led efforts to stop child labor, give health benefits and provide aid to workers who were injured or retired.</u>
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Your answer that fills in the blank is: Social Security.
When Sputnik went into orbit in 1957, America went into a panic. Only President Dwight Eisenhower retained his composure and understood that the United States was far superior to the Soviet Union in scientific research as well as in military firepower.
