D is the answer lmk it’s wrong or right
It was that "Flat land with poor drainage led to salinization from irrigation waters," that was a factor in the decline of Sumer, since this led to a build up of salt in the soil, which greatly reduced agricultural output.
Answer:
Japan's Involvement in World War II
In September 1940, Japan signed the Tripartite Pact with Nazi Germany and Fascist Italy, in which they agreed to assist one another should any of them be attacked by a country not already involved in the war. ... The United States declared war one day later.
Central pacific railroad built the transcontinental railroad eastward from Sacramento California by hiring 10,000 chinese laborers to work on the tracks
Explanation:
The reason why world war 1 was so significant is beacuse was one of the great watersheds of the 20th century.
