If Congress asked you to choose a location for a new national park and one of your primary concerns, was preserving biodiversity, where would you locate it?

Dr. williams conducted a survey in the mall, measuring the shopping habits of people ages 15, 25, 35, 45, and 55, with 10 people in each group. which of the following best describes her study? an experiment a cross-sectional study a case study a longitudinal study a double-blind study