Answer: Time represents independent variable.
Step-by-step explanation:
Independent variable: These are the variables which not dependent on other variables. Independent variables are used to see the variation in dependent variables. For example age is independent variable.
Time is the example of Independent variable as we cannot fix time or we can say that time cannot stopped. It is variable which doesn't get affected by the other variables.
Dependent variable : These are the variables which are depends upon the independent variables. For example height is a dependent variable.