Which alliance depicted in the map below was formed to block the spread of communism?

North Atlantic Treaty Organization
United Nations
Warsaw Pact
League of Nations

Which pronoun has an unclear antecedent in the following sentences? the sixth-grade students liked volunteering their time to read to the elderly people in the hospital. it made them happy. a. their b. it c. them d. no unclear antecedents

Political boundaries are determined by the political party in control at all time true or false

On average, being married has a(n) effect on happiness.