Who are the Calpolli like in Asia?

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

Select the correct answer. assume that you are a member of a special interest group that wants to raise taxes on certain items. who would you present your idea to if you wanted it to be proposed as a bill? a. a supreme court justice b. the president c. the american people d. a senator e. a member of the house

What period of history refers to the time when people did not have written records