Based from a huge study that was done with 5,500 respondents who lived in Europe from childhood through late adulthood found that eveningness peaked at ages a. 20 to 21 years.
The study’s results mean that a lot of people are in the stage of peak alertness during the age of 20 to 21 years old. This age is the stage of a person’s life where they are in the young adulthood stage.
 
        
             
        
        
        
Here's the answers in order:
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people's rights
- natural law
- social contract
So the full paragraph would read:  Many philosophers wrote down their philosophies about the government and <u>people's rights</u>.  A number of philosophers published books on the subject. They applied the idea of <u>natural law</u> to social and political analysis. Thomas Hobbes wrote Leviathan, a book about social structure and government. He wrote about the <u>social contract</u>, an agreement in which the people exchanged some of their individual freedoms for the government’s protection.
 
        
                    
             
        
        
        
Answer:
Acknowledgement 
Explanation:
Acknowledgement is known as a declaration made by a person before a public officer that he/she freely and voluntarily executed a deed or other instrument.
Acknowledgement is also defined as the acceptance of the truth pertaining to a case. It helps in investigation processes too.There are conditions attached to this type of declaration such as lesser penalties for the crime committed in most climes of the world.
 
        
             
        
        
        
I believe the answer is: Recidivism
Recidivism refers to The tendency for criminal to repeat the offense that made them convicted in the first place.
Many experts believe This happen because the prison system in united states do not add enough educational value for the inmates to change their behaviors/way of thinking.