Which is necessary for a society to be considered a civilization? choose all answers that are correct. a. an established army b. an education system c. extra food supplies d. strong government leaders e. the creation of cities

In which research method does a researcher change the value of one variable to determine how the change affects another variable? a. experiment b. observational research c. survey d. case study

According to subpart d, research with children may be eligible for exemption when: the children will be asked to complete a surveythe research involves the use of educational teststhe children will be interviewed by the researcher.the research with children will involve participant observation with researcher interaction.

(courts and civil liberties 04.04 hc) "the right of citizens of the united states, who are eighteen years of age or older, to vote shall not be denied or abridged by the united states or by any state on account of age." which of the following reflects the source and impact of this quote? (5 points) the 19th amendment protects the right to vote for all legal adults. before this amendment, voters had to not only be an adult but also serve in the armed forces and be a high school graduate before they could vote. the 26th amendment protects the right to vote for all legal adults. before this amendment, young adults could be in college or even serving the military in combat but not be eligible to choose their leaders for a few years. the 19th amendment prevents states from allowing minors to vote. before this amendment, widespread voter fraud was an issue throughout the states, as parents would vote multiple times using their children's names. the 26th amendment prevents states from allowing minors to vote. before this amendment, candidates directed their campaigns at children and teens through cartoons rather than focusing on real political issues.