The factors that made it difficult for Eastern Europe to improve its water quality were outdated sewer systems, raw water quality, worn-out water utilities and unskilled employees.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 />
Answer:
a
Explanation:
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George Mason was the Virginian who refused to sign the U.S. Constitution but was one of the chief supporters of the Bill of Rights. For this reason he is still considered one of the Founding Fathers of the United States of America.
The Civil Rights Act of 1871 gave the US President the power to temporarily get rid of the writ of habeas corpus.
The write of habeas corpus is usually used as a means to stop the government from unlawfully detaining a person. However, in this case, the president agrees to suspend this for a certain amount of time in order to more effectively stop the actions of the Ku Klux Klan and other white supremacist organizations. At this time, the KKK and other groups were terrorizing newly freed African-American citizens. This was especially true in southern states where slavery used to exist.