The factors that made it difficult for Eastern Europe to improve its water quality were outdated sewer systems, raw water quality, worn-out water utilities and unskilled employees. So we can say that four options given in the question fits the bill perfectly. These basic infrastructural reasons were responsible for being a hurdle towards improving the water quality. <span />
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The Indians living in the area where Jamestown was settled must have had mixed feelings about the arrival of the English in 1607. One of their first reactions was hostility based on their previous experience with Spanish explorers along their coastline. They attacked one of the ships before the English actually landed. Yet the Indians soon began to offer food and traditional Indian hospitality to the newcomers. At first, Powhatan, leader of a confederation of tribes around the Chesapeake Bay, hoped to absorb the newcomers through hospitality and his offerings of food. As the colonists searched for instant wealth, they neglected planting corn and other work necessary to make their colony self-sufficient. They therefore grew more and more dependent on the Indians for food.
King Philip's War is sometimes called the First Indian War. It took place between 1675 and 1678. King Philip's war was fought between the English colonists of New England and a group of Native American tribes. The main leader of the Native Americans was Metacomet, chief of the Wampanoag peoples.
I think the correct phrase for the answer is, dissolve the political bands. It was the political bands that tie the American people as a British colony. Thomas Jefferson clearly states the bond between the states that prohibits them from their freedom.
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The United States and the Islamic Republic of Iran have had no formal diplomatic relationship since that date. Switzerland is the U.S. protecting power and provides limited consular services to U.S. citizens in Iran. Iran has no embassy in Washington, D.C