Answer:
Montgomery Bus Boycott. Sparked by the arrest of Rosa Parks on 1 December 1955, the Montgomery bus boycott was a 13-month mass protest that ended with the U.S. Supreme Court ruling that segregation on public buses is unconstitutional. The roots of the bus boycott began years before the arrest of Rosa Parks.
Explanation:
I would say alliances and nationalism because nationalism only encouraged countries to go to war and prove that they were the best most powerful country around and in terms of WWI, nationalism led to strong dedication to the army and just keep most countries in the war longer than they should have been in it. Alliances were significant in the exact beginning of the war and the scale to which the war was fought. The many (secret) alliances led to austria-hungary and Serbia to sorta threaten each other, which brought Germany in, then France, etc.
Answer:
There is alredy a treaty called Geneva Gas Protocol that banned the use of these weapons
The Geneva Gas Protocol, in full Protocol for the Prohibition of the Use in War of Asphyxiating, Poisonous or Other Gases, and of Bacteriological Methods of Warfare, in international law, treaty signed in 1925 by most of the world’s countries banning the use of chemical and biological weapons in warfare. It was drafted at the 1925 Geneva Conference as part of a series of measures designed to avoid repetition of the atrocities committed by the belligerents in World War I.
The problem is that it is difficult to implement but a good measure would be very high fines to the countries that produce or stockpile these weapons.
Explanation:
Answer will be D They were developed by early historians