Answer: Independent variable is type of fertilizer
Dependent variable is growth of marigold
Control is a marigold with no fertilizer
Step-by-step explanation:
Independent variable can be defined as the factors which the experimenter can control and the the dependent variable depends on the independent variable.
The dependent variable is growth of marigold. Type of fertilizer will determine growth of marigold that which of the following fertilizer is best for the growth of marigold.
Controlled can be defined as the factor which can minimize the effect of variable other than independent variable.