Jackie performs an experiment on how the type of music played in a room can affect plant growth. In her experiment, the independent variable is the—

A. Color of flower
B. Type of music
C. Height of plant
D. Type of plant

B. Type of music.

Explanation:

"how the type of music played in a room can affect plant growth."

The independent variable is the variable that is changed for the purpose of the experiment. The type of music is the independent variable here.

air quality

poor drinking water

and heavy polution

can lead to poor health