Answer:
The Preamble to the U.S. Constitution summarizes the Founding Fathers’ intention to create a federal government dedicated to ensuring that “We the People” always live in a safe, peaceful, healthy, well-defended—and most of all—free nation.
Genres are distinctive styles of creative works and represent different types or formats of media content.
Answer: Railroad expansion affected the US economy by creating jobs, establishing a national market, establishing a cattle industry on the Plains, and allowing certain people to acquire great wealth through investing in the railroad.
Explanation:
Answer: D. advanced technology in irrigation to create agricultural surpluses
Explanation:
There is no map so I do not know which river valley civilization you speak of but I found the options for this question with the answer above being the most likely answer.
The question most probably alludes to the Indus River Valley Civilization which is one of the oldest civilizations to ever exist in the human world.
They had quite a high population for the time and so came up with various technological advances to cater for their people including sewage and water systems.
It was their work with irrigation that earned them high praise however. They came up with advanced irrigation techniques which ensured that agriculture boomed and created enough food to feed the population.
The answer is The Massai. This tribe is a nomadic group of people from central and southern Kenia and northern Tanzania.