Answer:
This question is asking to identify the following variables in the question;
Independent variable: COLOR OF LIGHT
Dependent variable: NUMBER OF LEAVES OF THE PLANT.
Constant: SAME SPECIES OF PLANT, SAME AMOUNT OF WATER
Explanation:
Independent variable is the variable that is changed or manipulated by the experimenter in an experiment. In this experiment, the COLOR OF LIGHT is the independent variable because it is the variable that was changed
The dependent variable is the variable that is measured in an experiment or the variable that responds to the changes made to the independent variable. In this experiment, the dependent variable is the NUMBER OF LEAVES OF THE PLANT.
The constant is the variable that is kept unchanged by the experimenter throughout the experiment. In this case, the SAME SPECIES OF PLANT, SAME AMOUNT OF WATER are the constants.