University of Texas students were fitted with belt-worn audio recorders for up to four days so that researchers could sample their daily activities. The researchers employed a scientific method known as

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

97 points what types of changes have been made in the united states to protect people from earthquakes? a. communities are no longer located along fault lines. b. building codes ensure that structures can withstand shaking. c. warnings go off when an earthquake is expected, and people evacuate the area. d. barriers have been built to prevent flooding by a tsunami.

This is a government controlled by one person with absolute power. question 3 options: communist democratic autocratic parliamentary