Answer:
1. The Diet Pills
2. The Height Of the plants
3. The plant being watered with tap water
4. 8 Trials were included
Step-by-step explanation:
1. An independent variable is the variable that you change
2. The dependent variable is what you are measuring, in this example the height of the plant
3. This is what you use to base your conclusion on. In this test they are seeing if diet pills affect the height of the plants. So a plant with no diet pill is the control
4. The results were taken at the end of the week for EIGHT weeks. 8 Trials.