1 is A i think :/ not too sure
Archduke Franz Ferdinand, nephew of Emperor Franz Josef and heir to the Austro-Hungarian Empire, is shot to death along with his wife by a Serbian nationalist in Sarajevo, Bosnia, on this day in 1914. The assassination of Franz-Ferdinand and Sophie set off a rapid chain of events: Austria-Hungary, like many in countries around the world, blamed the Serbian government for the attack and hoped to use the incident as justification for settling the question of Slav nationalism once and for all. As Russia supported Serbia, an Austro-Hungarian declaration of war was delayed until its leaders received assurances from German leader Kaiser Wilhelm that Germany would support their cause in the event of a Russian intervention–which would likely involve Russia’s ally, France, and possibly Britain as well. On July 28, Austria-Hungary declared war on Serbia, and the tenuous peace between Europe’s great powers collapsed. Within a week, Russia, Belgium, France, Great Britain and Serbia had lined up against Austria-Hungary and Germany, and World War I had begun
Answer:
Farmlands were laid waste, the population was decimated by war, famine, Black death
Explanation:
The Adams-Onis Treaty was a treaty between the United States and Spain in 1819, which also known as the Transcontinental Treaty or the Florida Purchase Treaty. The treaty is all about the boundary of the United States and New Spain but then there is one element that doesn’t include on this treaty like, the United States gained control of the Texas territory from France.
First D. Then C. Then B. Then A.