Answer:
selective livestock breeding
Explanation:
President Nixon overestimated people's support for his Vietnam policies and underestimated opposition to continuing the war.
Richard Nixon had campaigned for the presidency by appealing to what he called "The Silent Majority" of American citizens -- the everyday, middle-class, working folks who were not part of the anti-war protests that had been happening in the country. On November 3, 1969, during his first year in office, President Nixon called on that "silent majority" in a major radio and television address. In response to continuing war protests, Nixon urged solidarity in support of the war effort in Vietnam War effort, saying that the United States was “going to keep our commitment in Vietnam.” He pledged that US forces would keep fighting until an honorable peace was achieved or until the South Vietnamese were able to defend themselves without US help.
Nixon's urgings did not stop the war protests. In fact, the largest anti-war protest in US history then took place on November 15, 1969. The Moratorium to End the War in Vietnam, which had staged teach-ins and demonstrations across the country in October, held a massive march and rally in Washington, DC, which was attended by half a million protesters.
The answer is B. The only explanation I can give is that A and C are wrong because the legislative, judicial, and executive branches all share power. As far as D goes, the states' own laws don't really affect each other so there is no need for the power to be shared among them. Anything outside of the state becomes federal.
Answer: The Cold War was the period of global tensions between the United States and the Soviet Union.
Explanation: This began after World War II when the Soviet Union (Russia an other now-independent republics Georgia, Ukraine, etc) instaled communist governments in the countries of eastern Europe that the USSR occupied after the war. Tensions rose throughout the 1950's and were not completely over until the Soviet Union collapsed in December 1991.