Answer:
Covariation of cause and effect
Explanation:
According to my research on different causes of behavior, I can say that based on the information provided within the question the term that best exemplifies this is Covariation of cause and effect. This term refers to  the process of establishing that there is a cause and effect to relationship between the variables. In this situation the cause would be reading more newspapers, and the effect would be that the students display more knowledge of current events.
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Answer:
The sample contains protein.
Explanation:
Biuret test is a test used to determine or assay for proteins in a solution. When the biuret reagent is added to a solution and it turns blue after 2 minutes, it means that the solution contains protein.
 Benedict’s test is used to determine the presence of sugar (reducing sugar) in a solution. When it turns brick red, it means there is the presence of reducing sugar in large quantity.
From the question, since the solution turned blue on addition of Biuret  reagent and was also blue on addition of  Benedict’s reagent (the reagent is usually blue), it means that the solution contained just proteins excluding reducing sugars.
 
        
             
        
        
        
B. microcredit.because paying small credits.
        
             
        
        
        
The correct answer is customs.
Customs refers to the social thought that portrays a customary, designed method for carrying on that is viewed as normal for life in a social framework. Shaking hands, bowing and kissing are on the whole traditions. They're methods for welcome individuals that assistance to recognize one society from another.