Imperialism was one of the causes of World War 1. Imperialism means that two countries want to invade the same piece of land as one another. This will result in war because both countries will fight for who gets to take over the other country.
Economic competition was another cause because it was a rivalry of which countries had more profits.
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From what I think is because laws weren't placed to protect people/workers, since owners pays close attention to money instead of the health of their workers.
The correct answer to this open question is the following.
Although there are no options attached or further references, we can comment on the following.
I think some of the challenges facing those restoring the Hagia Sophia church in Turkey are the following.
First, the budget needed to continually restorative the impressive building. Next, the qualified persons to do it. They need specialists in engineering and art to do the kind of conservation needed.
For a monumental structure like Haga Sophia, it is required to have a high budget to do permanent maintenance works as a preventive measure, as well as to correct the problems caused by the pass of time such as erosion, cracks in the walls, humidity.
I think its A, I might not be correct though. <span>the Securities and Exchange Commission(SEC)—to prevent another stock market crash by more government control/regulation in stock transactions.</span>