"Sumerian city-states fought each other" would be the best option from the list, since this internal division led to a collapse of power that left people without protection or a solid economy.
Correct answer choice is :
2) The Soviet Union’s surprising launch of Sputnik into Earth’s orbit
Explanation:
The Space Race leads to the 20th-century contest among two Cold War opponents, the Soviet Union and the United States, for dominance in spaceflight ability. The Space Race starts in 1957 and the U.S. and the Soviet Union are clasped into the Cold War. The Soviet Union has just begun the world's first satellite, Sputnik. Afraid of Soviet military control of space, the Americans immediately ready a rocket.
Answer:
I believe your answer should be a.
The news of the failure of the French armies in Belgium gave rise in Paris to popular movements on March 9–10, 1793; and on March 10, on the proposal of Georges Danton<span>, the Convention decreed that there should be established in Paris an extraordinary criminal tribunal, which received the official name of the Revolutionary Tribunal by a decree of Oct. 29, 1793.</span>
