Awar between two sides of the same country

The guards at the royal palace in london stand at attention while on duty. on a very hot day, it is not unusual for one (or more) to become light headed and faint. explain this phenomenon

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

An economic term that describes happiness and its hard to measure in numbers is