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Puberty occurs when a part of the brain called the hypothalamus begins to produce a hormone (gonadotropin) that has an effect on the testes and ovaries causing an increase sex hormone — estrogen in girls and testosterone in boys.
For china and russia Relations between the Soviet Union and China reach the breaking point as the two governments engage in an angry ideological debate about the future of communism. The United States, for its part, was delighted to see a wedge being driven between the two communist superpowers.
Answer:
Each other, and managing Europe
Explanation:
After WW2 the relationship between the USSR and the US completely broke down, and the UK allied itself with the US. These nations also sought to prevent another world war in Europe. They divided Germany between East and West, and the USSR took control of many other nations, such as Poland.