Prepositions and Prepositional Phrases

Okay I just checking if my answers correct

Put these events in the correct order #1-4. cause: world war 1 caused heavy casualties and property damage throughout europe. many people barely had enough food to eat or coal to stay warm. what happened next? question 1 options: communism soon spread to many small countries near russia, and eventually spread to cuba, china, and vietnam. led by vladimir lenin, a group called the bolshevik party gained the support of the people and overthrew russia’s monarchy, killing czar nicholas ii and his family. russia, now led by lenin, became the first communist nation in history. russian citizens, who were starving and poor, became angry at the ruling class who held all of the nation’s wealth. 1 2 3 4

Although china's total economic output, measured by gross domestic product (gdp), is third largest in the world, it is considered a developing nation. what is most likely the most important factor for this designation?

How has germany developed through the 19th centuryexplain in about 100 words the sequence of events that led to the nation’s unification. btw if u use any sources (aka websites) lemme kno