In order to belong to a political party one needs to
a.
a. pay dues.
b.
b. pass an exam.
c.
c. join/say you belong.
d.
d. all of the above.

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

This term refers to the number of people per unit area (usually a kilometer or a mile). this could refer to the number of people per square mile in a city, a county, a province, a state, or a nation.

What is the largest room in the white house