Answer:
Dependent variable: Plant growth
Independent variable: Water
Explanation:
The <u>Independent variable in an experiment is defined as the variable which can be changed or controlled to measure its effect on the dependent variable</u> and change in dependent variable depends on the independent variable.
In the given example quantity of water is an independent variable and plant growth is a dependent variable because quantity of water can be controlled that influences plant growth.
Hence, the correct answer is:
Dependent variable: Plant growth
Independent variable: Water