Answer: the invention of cotton gin
Explanation:The cotton gin refers to a a machine that sets aside cotton fibers from their seeds. Therefore, the invention of the cotton gin transformed the cotton industry in the United States and demanded cheap labor force, which led to the rise of slavery in the South and to the American Civil War later.
Answer:
Atomic Bomb question
Explanation:
Harry Truman was in charge because Franklin Roosevelt Died from a stroke in April of 1945. We dropped the first bomb on Hiroshima on August, 6, 1945 And then on August 9 1945 we dropped another bomb on Nagasaki. The reason we dropped 2 bombs instead of one is because the whole purpose of dropping the first one was to get Japan to surrender and they didn't so we dropped another one and they finally did surrender. the names of the bombs where Fat man And Little Boy.
Answer:
Explanation:
The greatest effect of the European intrusion into the Americas was to increase the Indian and mestizo population through intermarriage with the whites. The primary cause of the massive population decline among native Americans after the European arrival was not warfare but disease.
The Enlightenment produced numerous books, essays, inventions, scientific discoveries, laws, wars and revolutions. The American and French Revolutions were directly inspired by Enlightenment ideals and respectively marked the peak of its influence and the beginning of its decline.
the area of unstable plate tectonics that causes earthquakes and volcanic activity along the Pacific Ocean is known as the ring of fire. The ring of fire is also known as circum-pacific belt. It is a 40,000 kilometer horseshoe shaped area that includes 452 volcanoes and accounts for approximately 90 per cent of the worlds earthquakes.