They did this so when the Mongols took over China, the Chinese could not gain high power and over throw the mongols.
A glass bottle would sink instead of floating if there was no air inside of it
Answer:
Tuskegee.
Explanation:
As the exercise describes, one of the most shameful violations of research ethics to date, nearly 400 African American men from Tuskegee (later called the Tuskegee syphilis experiment) were not informed that they had been diagnosed with syphilis and were not provided with available, effective treatments for this illness. The aim of this study was to observe and analyze how syphilis proceded when untreated. So, this men were told they were being treated for free.
The limiting factor that can involve a person's feelings about his own weight or ability is : Motivation
in most cases, the only thing that greatly affect the self confidence of an overweight person is their own motivation. Whether it's the motivation to get out from their current state or the motivation to focus on their goals while ignoring other's negative feedback,
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Rejected children <span>are at the highest risk for poor school performance, substance abuse, and antisocial behavior in adolescence and delinquency with criminality in early adulthood.
A rejected child is someone who is left out by peers or family members. When a child feels and is being rejected, their performance in school and actives reflects that and it is often carried through adulthood. </span>