The answer is b i hope that helps
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.
Answer: As a result an informal norm has become a law.
Even before states had started making it illegal for people to drive while using cell phones, grouping of individuals had already stood against this practice. Thus, we can say that the social movement started at the beginning of the 21st century was what actually made this law come true.
Answer:
Untouchability is a social evil because the backward classes are denied the very fundamental rights, which are guaranteed to each and every citizen by the Constitution. ... Untouchability alienates people from the social structure and hinders the progress of the society as a whole