The rapid growth of the population of San Francisco started in 1848. The main reason was the California gold rush. The gold was found in the Sierra Navada and it brought many people to California from the rest of the US and abroad. The population boom included many workers from China. The population of San Francisco increased from about 20,000 in 1850 to about 150,000 in 1870. Answer: C. Discovery of gold in the Sierra Nevada.
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Answer: The policy of containment set the tone for US foreign policy by focusing on keeping communism and the Soviet Union's influence limited, rather than by trying to confront the Soviet Union directly or eliminate communism completely.
Context/details:
George F. Kennan recommended the policy of containment which set the tone for US involvement in world relations following World War II. Kennan was an American diplomat in Moscow after World War II. In 1946, he sent what became known as "the long telegram" of his advice about what the USA needed to do about the Union of Soviet Socialist Republics (USSR). It really was a <u>long</u> telegram -- it totaled 8,000 words.
In those days, everyone feared an ultimate confrontation between the USA and the USSR -- that the Cold War would someday explode into a massive heated conflict between the superpowers. Kennan, in Moscow, had much foresight to see the internal problems the USSR had. He advised not pushing the conflict too much, but instead just try to "contain" the Soviet Union and wait for their system to collapse under the weight of its own problems. Kennan was right. It took almost 50 years, but eventually the communist system in the USSR fell apart. [The Union of Soviet Socialist Republics came to an end in 1991.]
Coal and wood are two sources which had been used extensively since the 18th century. when steel was commercialized heavily using the Bessemer Proces later at the 19th century. At this time, petroleum became the major energy source of energy and was even used extensilvely in other processes as converting petroleum to fuels.
They taught them how to hunt and fish.how grow crops and make house out of resources .they told them which berry we're ok to eat.(hope that helped)