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)
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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.
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The correct answer would be option B, Psychological distancing is a modern substitute for leaving the family around the time of puberty.
The above mentioned statement about the parent-child relationships in adolescence is true. 
Explanation:
Adolescence is a phase which comes in everybody's life around the age from 10 to 19. Many physiological changes as well as psychological changes are taking place during this phase of life. Puberty is the time during the adolescence when a boy or girl becomes sexually mature. 
Puberty in girls happen in the early phase of adolescent whereas puberty in boys happen in the mid to late adolescent. 
Now a days, children distance themselves psychologically from the family while passing this transition. It has become the modern substitute for leaving the family around during the time of puberty.
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Answer:
 It is the earliest Stone age period dating 2.6 million years ago. The age is distinguished by most primitive stone tools. Humans during the era grouped together in small “bands” and were involved in gathering plants, fishing and hunting. The age can be divided into lower Paleolithic, middle Paleolithic and upper Paleolithic. During the end of the age, people developed spiritual and religious beliefs as depicted in some of the excavations. It is the 3rd period of stone age and is often referred to as “New stone age”. Its time period is considered to be around 10,200 BC to 4,500BC , which ended with the beginning of “Bronze Age”. Only one human race (“homosapiens”) was found during this period. People lived in small tribes and were involved in domestication of animals. There is evidence of people living in permanent houses. There is also evidence of crop farming and cultivation during the period.
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Part of how .......................... in order to fully convey our EMOTIONS.
Man's emotions is usually expressed by the words which he speaks, in a situation where words can not be used, man typically make use of signals, gestures and other such methods to make his emotions known.