Answer:
Pre-Columbian civilizations, the aboriginal American Indian cultures that evolved ... human society and culture, ranking with the early civilizations of Egypt, Mesopotamia, and China. ... Teotihuacán, in the Valley of Mexico, was an urban centre of some 150,000 people, 
 
        
             
        
        
        
Answer:
A nation state is a state in which the great majority shares the same culture and is conscious of it. The nation state is an ideal in which cultural boundaries match up with political ones.[1] According to one definition, "a nation state is a sovereign state of which most of its subjects are united also by factors which defined a nation such as language or common descent."[2] It is a more precise concept than "country", since a country does not need to have a predominant ethnic group.
A nation, in the sense of a common ethnicity, may include a diaspora or refugees who live outside the nation-state; some nations of this sense do not have a state where that ethnicity predominates
 
        
             
        
        
        
<span>B.all the resources used to produce any goods and services </span>
        
             
        
        
        
The answer is: c. his mother gave him his allowance for doing his chores
Secondary reinforcement refers to something that could influence other people to do a certain behavior that come from other thing beside their own will.
When a mother gives allowance for his chores, it could make the children much more likely to do the chores. But the increase in likelihood does not come from the children's will, but from the children's intent to get the money,.