On August 6, 1945, during World War II (1939-45), an American B-29 bomber dropped the world's first deployed atomic bomb over the Japanese city of Hiroshima. The explosion wiped out 90 percent of the city and immediately killed 80,000 people; tens of thousands more would later die of radiation exposure.
The correct answer is where the royal power was weak or non-existent
Whenever there was a king that couldn't keep everyone in line, the local lords would band up on him or would become more and more independent and it would be difficult to control them since they would often work even with foreign powers against their own lords. This led to the downfall of numerous dynasties or emperors in Europe.
To calculate the population density, you will divide the population by the size of the area. Thus, Population Density = Number of People/Land Area. The unit of land area should be square miles or square kilometers. You can use square feet or meters if you are finding the density of a smallish space.
One observation definitely disproved the Ptolemaic<span> model, although it didn't prove that Copernicus was right. This was the observation that Venus has phases, much like our Moon does.</span>
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The correct answer is Douglas MacArthur. General Douglas MacArthur was the one who commanded American forces in the Pacific theater of war. Until in the Philippines, he was the one who lead the forces to unite with the Filipino guerrilla and fight the Japanese.
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