Answer:
In Africa not all places are able to enforce laws or provide basic goods and services to its citizens because of high crime rates, political corruption, ect. 
Explanation:
 
        
             
        
        
        
Answer:  Religion.
If you google the reason for the conflicts in Southwest Asia you find a variety of answers.  I found this to be the most clearly written:
The conflicts are caused by people who are fighting for religion, land and natural resources. What I mean by people fighting over land is some say that god gave them that land and people are still trying to claim it. With there natural resources such as oil, gas and etc. they want it in order to make money. And to become a better military force. With religion, they fight by saying that there religion is right and the other religion is wrong. We could help by learning about each other religions and explaining it to others. With the land we could as the US let them handle it and not let them caught up in their conflict. In regard of other countries military's we need to be watchful of what they are doing and not step them unless its nessarcry. It is important to learn about their culture. Because to be better prepare in case of war and knowing who you are fighting against.
 
        
                    
             
        
        
        
Answer:
B and C
Explanation:
B. In a given rock sample, the amount of Silicon-32 isotopes gets divided in half about every 170yrs.
This is the concept of half-life. Half life is the time take for half of a radioactive isotope to disintegrate. The shorter the half life the faster the isotope disintegrates.
From the question, we were told that it would take 170yrs for half of the isotope of Silicon to disintegrate to Phosphorus. This is the half life.
C. The half life can be used to determine the amount of Si-32 that has decayed from the time closure temperature was reached.
The closure temperature is very important in radioactivity. It is the temperature at which a system has cooled and there is no resulting disintegration of parent and daughter isotopes.
From first order kinetics, we know that the rate at which radioactive elements decay at any time is directly proportional to the number of radioactive atoms present. A knowledge of the half life helps to figure out the number of atoms that has decayed in time. 
 
        
             
        
        
        
Which of these statements is most likely correct about the stars?
 Star 2 attracts Star 1 with a greater gravitational force than Star 1 attracts Star 2.
No, because Third Newton Law states that both forces are equal in magnitude. 
 Earth exerts almost equal gravitation force on both the stars.
No, because the Universal Gravitational Law, estblished by Newton, states the atraction force to two masses is proportional to the product of the masses.
 Star 1 attracts Star 2 with a greater gravitational force than Star 2 attracts Star 1.
No (same reason for the first statement)
 Earth exerts greater gravitation force on Star 2 than on Star 1.
Right. This is the correct statement. Given the mass of Star 2 is greater than the mass of Star 1, by the Universal Gravitational Law, the earth exerts greater gravitational attraction on Star 2.
        
             
        
        
        
The answer is True
An example of this is the United States in which majority vote elects officials to make the majority of decisions for the people in the country.