At the Yalta Conference in February, 1945, Stalin had agreed to enter the war against Japan three months after Germany was defeated. Victory in Europe was achieved on May 8, 1945. The Soviet Union declared war on Japan on August 8, 1945, and invaded Manchuria with over a million troops to take on the Japanese army there.
As to the dropping of the second atomic bomb, even the dropping of the first could be challenged when factoring in the USSR. An option to dropping atomic bombs was to enlist Soviet troops in a joint invasion of Japan. But the USA wanted to avoid postwar Soviet presence in Japan, and the atomic bombs were seen as a way of ending the war quickly. As to the use of a second bomb at Nagasaki after the first was dropped on Hiroshima, it was because of the Allies' requirement that Japan submit to an unconditional surrender. They did not do so in the immediate aftermath of the Hiroshima bombing, so the second bomb was used. You can consider for yourself whether some other resolution besides "unconditional surrender" was a viable option.
The answer is C. he wanted to get the Mississippi River to transport goods
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Answer:
D. He thought that improved relations with China would improve relations with the Soviet Union.
Explanation:
I'm assuming they both where a ancient native american cultures but both have industrious and neither had written records of their cultures.
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There are many elements that make up both the weather and the climate of a geographical location. The most significant of these elements are temperature, atmospheric pressure, wind, solar irradiance, humidity, precipitation, and topography

Various elements make up the climate of a region, but the following are the most common:
Temperature . Temperature is the amount of heat energy that is in the air. ...
Precipitation. ...
Humidity . ...
Atmospheric pressure. ...
Cloudiness. ...
Wind.