According to the excerpt, what were the causes of world war 1? check all that apply. 1. russia’s mobilization 2. the spread of disease 3. the assassination of the archduke 4. imperialism and expansion 5. the growth of britain’s naval forces

The correct answers are number 1) Russia’s mobilizations, 3) the assassination of the Archduke, and 4) imperialism and expansion.

According to the excerpt, the causes of World War 1 were Russia’s mobilizations, the assassination of the Archduke, and imperialism and expansion.

There were many reasons to start World War 1 in that conflicted European region. Of course, one of the most important was the assassination of the Archduke Franz Ferdinand, because it was the beginning of a series of events that culminated with World War 1. Austria-Hungary declared war on Serbia on July 28, 1914. What happened next was that Russia began to mobilize its troops and got ready for war.  

he sent troops to protect the students as they entered the school.