Well the Byzantines' capital of Constantinople was almost completely surrounded by water. This gave them the advantage in anyone tried to invade them. They also built a large wall all around the city with protected the people from outsiders. They also invented Greek fire, which was fire that could not be put out by water. This was extremely useful to attack ships. They also put large chains in the water to prevent ship from getting through.
Pacific island that became a triple protectorate of the United States, Britain, and Germany <span>B) French Indochina</span>
The invention of the telegraph and telephone helped improve the standard in the United States by making the lives of the citizens more easier and efficient. The telegraph was a machine that send messages to places from long distances. The telephone is a machine that transmits sound to another device. The telegraph and telephone helped improve the living standards by helping people send messages and audio to places from long distances, so the person doesn't have to send a letter that could take days for the person to receive. It made the lives of the people in the United States a lot easier.
