What event happened in april of 1917 that changed the direction of world war i?

the united states entered the war.
germany defeated britain and france.
russia re-entered the war.
mexico attacked the united states.

What led to the environmental damage that caused the dust bowl? 1. desert winds emerging from the southwest 2. rotating crops every year and having fallow land 3.overplanting throughout the great plains 4.a year-long drought

How did the united states ironically create a slaverybased market economy and democratic political system?

Lucia drew a diagram to compare animal cells and plant cells. which label belongs in the area marked y? golgi body cell wall chloroplasts flagellum