Question

a person wants to test if miracle grow fertilizer really works. they plant 50 tomatoes in the same pots, location, and water. match variables
independent variable dependent variable control variable
kind of tomato
water
miracle grow
sunlight
weight of tomatoes
location of tomatoes

Explanation:

The independent variable is what is changed (miracle - grow). The dependent variable is what is measured as a result (weight of tomatoes). Control variables are kept the same (kind of tomato, water, sunlight, location).

Answer:

Independent variable: miracle grow
Dependent variable: weight of tomatoes
Control variable: kind of tomato, water, sunlight, location of tomatoes