A direct cause of World War 1 was <span>the assassination of Archduke Franz Ferdinand. But because that isn't one of the listed options, I'll have to pick something else.
Alliances were a big cause in the whole thing. Many countries in Europe made agreements with each other. If one country got attacked, the allied countries had to defend them.
So, you can see the whole thing got started. When one nation got into trouble, the other had to help them. Even if they didn't wanted to.
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No, but seriously I'll appreciate it very much if you mark this answer as the Brainliest.</span>
<span>Door-in-the-face
There are two relatively effective techniques to get someone to perform a favor for another. They are door-in-the-face (DITF) and foot-in-the-door techniques. Both techniques significantly increase the chance of a second request being performed. The door-in-the-face technique involves asking for a large favor that's highly likely to be declined. Then afterwards asking for a much smaller favor. In a classic DITF study, some researches took a randomly selected group of people and divided them into 3 groups. For the 1st group, the researchers first asked for volunteers to provide counseling to juvenile delinquents for 2 hours per week, for 2 years. Then after that request was declined, asked for volunteers to chaperone some juvenile delinquents for a day trip to the zoo. The 2nd group was simply asked to perform the day trip, and finally the 3rd group had counseling described to them, and was then asked to provide the chaperoning to the zoo. For the 1st group, 50% agreed to perform the day trip to the zoo, whereas only 17% of the 2nd group agreed to the trip and 25% of the 3rd group agreed.</span>
The geography of New England was mostly hills with rocky soil. <span>
The natural resources of the Southern Colonies included rich farm land, forests and fish.</span>