A student conducts an experiment to see if different types of music affect plant growth. She places three identical plants in separate rooms, each exposed to a different genre of music (classical, rock, no music) for the same amount of time daily, providing identical light and water. What is the dependent variable in this experiment?
✓ Correct Answer: Option D
The dependent variable is what is measured or observed in response to changes in the independent variable. Here, the student is observing how plant growth (dependent variable) is affected by the music (independent variable).