The spread of maize cultivation from present-day Mexico northward into the present-day American Southwest and beyond supported economic development, settlement, advanced irrigation, and social diversification among societies.
Examples: Pueblo, Navaho (Navajo)
the question is incomplete .please read below to find the missing content
What particular agricultural crop helped advance a civilization?
Cultivate Add to list Share. Cultivation is the act of caring for and growing plants. Your desire to grow your own fruits and vegetables in your backyard means that you will engage in some heavy cultivation. Commonly used.
Plowing (or excavating) refers to digging the soil down to a spade depth, burying weeds and debris into the soil, and aerating the soil to avoid compaction. It facilitates the penetration of airborne nutrients and water deep into the soil for plant roots to access.
Learn more about cultivation here 
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Constant movement of soldiers
        
                    
             
        
        
        
Explanation:
Upper-class boy:
“Hello. Today has been a rough day for me. All I can do is follow my father around, looking at museums. What do you have to do.”
Lower class girl:
“You are lucky. I have to sit all day, wearing jewels signifying I am getting married in a year.”
Upper-class boy:
“I see. My father wants me to either be a gladiator or a warrior.”
Lower class girl:
“I don’t get to go to school. Every morning I write in the walls to describe my day. I always sit in the back of gladiator fights with my sisters.”
Upper-class boy:
“Cool! Do you like gladiator fights? I do after I go back home and my servants feed me.”
Lower class girl:
“I honestly don’t know what gladiator fights are like. I can’t see from all the way in the back. Do you have servants? Now that is cool.”
Upper-class boy:
“You’re lucky you don’t have to learn all the things I do. Fighting and swimming are fun, but going to school is boring.”
Lower class girl:
“School! I would long to go to school. I have to learn to weave all the time.”
Upper-class boy:
“You’re right, that is boring. But you could always do gladiator fights. Women are allowed to do that now.”
Lower class girl:
“Didn’t you listen to me? I am going to get married in a year. I am too busy learning to be a wife.
Upper-class boy:
“I am sorry. Well, got to go to school. Bye.”
Lower class girl:
“Bye.”
 
        
             
        
        
        
<span>Many of the 56 signers of the Declaration of Independence
suffered many hardships after putting their signatures on the said
document.  Many were apprehended by the
British and branded as traitors. Others fought and died due to wounds and
hardships in fighting the war.  There
those who lost families and some lost their home and properties.  Family members of the signers were also
arrested and thrown in prison by the British. 
Still, these men were committed to be free from the yoke of British rule
and by signing the Declaration of Independence he were willing to face the
consequences of doing so.</span>
        
             
        
        
        
Answer:
I believe the choices are:
A. Vishnu shelters people who have been cast away from other religions.
B. Vishnu guards Hindus from the destructive practices of Shiva.
C. Vishnu protects Hindus from the cycle of birth and rebirth.
D. Vishnu preserves everything Brahma has created.
The answer is letter D, Vishnu preserves everything Brahma has created.
Explanation:
In order to know more about the answer, let's check out who "Vishnu" is.
Vishnu- In Hinduism, Vishnu is considered to be one of the religion's supreme deities, alongside Brahma <em>(the Creator of the whole universe)</em> and Shiva<em> (the Destroyer).</em> Vishnu is the "preserver" and his role is<em> </em><em>to protect humans and to restore order into the world. </em>As a protector, Vishnu preserves everything Brahma has created. <u><em>He returns to earth during troubled times and restores the balance between good and evil.</em></u><em> </em>
Thus, the answer is letter D.
<u>Additional Information</u>
Whenever humans are in trouble, Vishnu visits the earth in a <u><em>variety of human or animal forms.</em></u> These are called <em>"avatars." </em>He then helps people to overcome evil, bring justice and restore order.